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expeditions and surveys

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Baldy Peak, Cerro Blanco Mountains, Colorado, 14,234 feet above sea-level. Limit in altitude of vegetation about 11,000 feet.

Baldy Peak, Cerro Blanco Mountains, Colorado, 14,234 feet above sea-le...

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Water fall, Quebroda del Mar, Cupica Bay.

Water fall, Quebroda del Mar, Cupica Bay.

Picryl description: Public domain image of a waterfall, cascade, water stream, free to use, no copyright restrictions.

Cascades on Teton River.19th century US expeditions surveys.

Cascades on Teton River.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

The Cañon of Kanab Creek, near its junction with the Grand Cañon of the Colorado.

The Cañon of Kanab Creek, near its junction with the Grand Cañon of th...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Cooley's Ranch, 10 miles east of Camp Apache, Arizona.

Cooley's Ranch, 10 miles east of Camp Apache, Arizona.

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Islands, Cupica Bay.19th century US expeditions surveys.

Islands, Cupica Bay.19th century US expeditions surveys.

New Jersey stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Crystal Falls, Cascade Creek.19th century US expeditions surveys.

Crystal Falls, Cascade Creek.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century.

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Camp in the forests of the Yellowstone.

Camp in the forests of the Yellowstone.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

Eroded rocks, Monument Park. - Sterescope Card, Colorado

Eroded rocks, Monument Park. - Sterescope Card, Colorado

Picryl description: Public domain image of a world heritage landmark, natural or regular park, free to use, no copyright restrictions.

Comb on the West Gallatin.19th century US expeditions surveys.

Comb on the West Gallatin.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Pot holes in basaltic rocks, Snake River.

Pot holes in basaltic rocks, Snake River.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Scene in village19th century US expeditions surveys.

Scene in village19th century US expeditions surveys.

Picryl description: Public domain photograph of a tent, camp, free to use, no copyright restrictions.

Lower cañon.19th century US expeditions surveys.

Lower cañon.19th century US expeditions surveys.

Picryl description: Public domain image of a mountain landscape, rocks, mountains, free to use, no copyright restrictions.

Old Faithful in eruption.19th century US expeditions surveys.

Old Faithful in eruption.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Crater of Grand Geyser.19th century US expeditions surveys.

Crater of Grand Geyser.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Kai-vav-its, a tribe of Pai Utes living on the Kai-bab Plateau near the Grand Cañon of the Colorado in Northern Arizona : Won-si-vu at rest

Kai-vav-its, a tribe of Pai Utes living on the Kai-bab Plateau near th...

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Pine Creek.19th century US expeditions surveys.

Pine Creek.19th century US expeditions surveys.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

The Nu-a-gun-tits, a tribe of Indians living at the Ve-gas, or meadows, in southwestern Nevada : the old gamblers.

The Nu-a-gun-tits, a tribe of Indians living at the Ve-gas, or meadows...

Nevada Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assem... More

The gate of Ladore.19th century US expeditions surveys.

The gate of Ladore.19th century US expeditions surveys.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

The shadow.19th century US expeditions surveys.

The shadow.19th century US expeditions surveys.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

U-in-tah Utes: the elk skin tent.

U-in-tah Utes: the elk skin tent.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

View across Black Cañon. The grand walls in perspective.

View across Black Cañon. The grand walls in perspective.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

View in the Grand Cañon of the Colorado River.

View in the Grand Cañon of the Colorado River.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Devil's Anvil, Sheavwitz Crossing.19th century US expeditions surveys.

Devil's Anvil, Sheavwitz Crossing.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Marble Cañon, one of the gorges of the Colorado here, 1,200 feet deep.

Marble Cañon, one of the gorges of the Colorado here, 1,200 feet deep.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Circle Wall, Cañon de Chelle.19th century US expeditions surveys.

Circle Wall, Cañon de Chelle.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Navajo brave and his mother.19th century US expeditions surveys.

Navajo brave and his mother.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Apache Indians, as they appear ready for the war-path.

Apache Indians, as they appear ready for the war-path.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Apache Indians, as they appear ready for the war-path.

Apache Indians, as they appear ready for the war-path.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Shee-zah-nan-tan, Jicarilla Apache brave in characteristic costume, northern New Mexico.

Shee-zah-nan-tan, Jicarilla Apache brave in characteristic costume, no...

Picryl description: Public domain image of a costume accessory, fashion design, free to use, no copyright restrictions.

Shoshone Falls, Snake River, Idaho. Main fall, 210 feet from upper to lower level; height of cañon walls at the falls, 1,000 feet. A number of minor falls, islands, and boulder rocks among the main falls add beauty to the lonely majesty of this scene.

Shoshone Falls, Snake River, Idaho. Main fall, 210 feet from upper to ...

Maine stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Shoshone Falls, Snake River, Idaho, looking through the timber, and showing the main fall, and upper or "Lace Falls."

Shoshone Falls, Snake River, Idaho, looking through the timber, and sh...

Maine stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Palms.19th century US expeditions surveys.

Palms.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

La Eglissa de Santa Juan [sic], Cartagena.

La Eglissa de Santa Juan [sic], Cartagena.

Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.

Street in Pinogana.19th century US expeditions surveys.

Street in Pinogana.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Apache Indians, as they appear ready for the war-path.

Apache Indians, as they appear ready for the war-path.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Rapids above the falls of the Yellowstone.

Rapids above the falls of the Yellowstone.

Wyoming stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Frozen lake near James Peak.19th century US expeditions surveys.

Frozen lake near James Peak.19th century US expeditions surveys.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

Central portion of Cañon de Chelle, New Mexico.

Central portion of Cañon de Chelle, New Mexico.

New Mexico stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Shoshone Falls, Snake River, Idaho, looking through the timber, and showing the main fall, and upper or "Lace Falls."

Shoshone Falls, Snake River, Idaho, looking through the timber, and sh...

Maine stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Sensitive plant.19th century US expeditions surveys.

Sensitive plant.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Crystal Falls, Cascade Creek.19th century US expeditions surveys.

Crystal Falls, Cascade Creek.19th century US expeditions surveys.

Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.

Mud puffs.19th century US expeditions surveys.

Mud puffs.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century.

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century...

Wyoming stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Bridge over the Madison River.19th century US expeditions surveys.

Bridge over the Madison River.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Ogden Canon, Utah. Ogden Utah 19th century stereoscope card. Utah.

Ogden Canon, Utah. Ogden Utah 19th century stereoscope card. Utah.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Eroded rocks, Monument Park. - Sterescope Card, Colorado

Eroded rocks, Monument Park. - Sterescope Card, Colorado

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Tower Falls.19th century US expeditions surveys.

Tower Falls.19th century US expeditions surveys.

Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.

Reflected cliff.19th century US expeditions surveys.

Reflected cliff.19th century US expeditions surveys.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Mo-a-pa-rit-ats, a tribe of Indians inhabiting the valley of the Mo-a-pa River, a tributary of the Rio Virgen, a tributary in Southern Nevada : San-o-kuts.

Mo-a-pa-rit-ats, a tribe of Indians inhabiting the valley of the Mo-a-...

Nevada Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assem... More

Kai-vav-its, a tribe of Pai Utes living on the Kai-bab Plateau near the Grand Cañon of the Colorado in Northern Arizona : the necklace.

Kai-vav-its, a tribe of Pai Utes living on the Kai-bab Plateau near th...

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

View across Black Cañon. The grand walls in perspective.

View across Black Cañon. The grand walls in perspective.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

View down Black Cañon, from Mirror Bar. The walls repeated by reflection.

View down Black Cañon, from Mirror Bar. The walls repeated by reflecti...

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

The Cañon of Kanab Creek, near its junction with the Grand Cañon of the Colorado.

The Cañon of Kanab Creek, near its junction with the Grand Cañon of th...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

The mouth of Kanab Creek.19th century US expeditions surveys.

The mouth of Kanab Creek.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Marble Cañon, one of the gorges of the Colorado here, 1,200 feet deep.

Marble Cañon, one of the gorges of the Colorado here, 1,200 feet deep.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Indian pueblo of Zuni, New Mexico; view from the interior.

Indian pueblo of Zuni, New Mexico; view from the interior.

New Mexico stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Group of Zuni Indian "braves," at their pueblo, N.M.

Group of Zuni Indian "braves," at their pueblo, N.M.

Picryl description: Public domain image of ethnic group, people gathering, anthropology, colonies, exotic, indigenous people, free to use, no copyright restrictions.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of cañon at this point about one fourth of a mile.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of cañon at...

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Group of Zuni Indian "braves," at their pueblo, N.M.

Group of Zuni Indian "braves," at their pueblo, N.M.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Natural arch.19th century US expeditions surveys.

Natural arch.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Sea, curving Cupica Bay.19th century US expeditions surveys.

Sea, curving Cupica Bay.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Visits in the forest, Chipigana.19th century US expeditions surveys.

Visits in the forest, Chipigana.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Cliffs, Limon Bay.19th century US expeditions surveys.

Cliffs, Limon Bay.19th century US expeditions surveys.

New Jersey stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Coyotero Apache scouts, at Apache Lake, Sierra Blanca mountains, Arizona.

Coyotero Apache scouts, at Apache Lake, Sierra Blanca mountains, Arizo...

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Shoshone Falls, Snake River, Idaho. Main fall, 210 feet from upper to lower level; height of cañon walls at the falls, 1,000 feet. A number of minor falls, islands, and boulder rocks among the main falls add beauty to the lonely majesty of this scene.

Shoshone Falls, Snake River, Idaho. Main fall, 210 feet from upper to ...

Maine stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Pah-ge, a Ute squaw, of the Kah-poh-teh band, northern New Mexico.

Pah-ge, a Ute squaw, of the Kah-poh-teh band, northern New Mexico.

New Mexico stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the fore-ground.

Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the f...

Idaho stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Palm grove, Napipi Grove.19th century US expeditions surveys.

Palm grove, Napipi Grove.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

La Eglissa de la Merci, Cartagena.

La Eglissa de la Merci, Cartagena.

Public domain image of a medieval city, castle, cathedral, architecture, 14th century, free to use, no copyright restrictions image - Picryl description

Street, Pinogana.19th century US expeditions surveys.

Street, Pinogana.19th century US expeditions surveys.

New Jersey stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Gratto Geyser, Fire Hole Basin.19th century US expeditions surveys.

Gratto Geyser, Fire Hole Basin.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century.

Grand Canon of the Yellowstone. Wyoming stereoscope card, 19th century...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Green River, Brown's hole.19th century US expeditions surveys.

Green River, Brown's hole.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Grotto Spring, Grand Cañon, Colorado River.

Grotto Spring, Grand Cañon, Colorado River.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Coyotero Apache scouts, at Apache Lake, Sierra Blanca mountains, Arizona.

Coyotero Apache scouts, at Apache Lake, Sierra Blanca mountains, Arizo...

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Pah-ge, a Ute squaw, of the Kah-poh-teh band, northern New Mexico.

Pah-ge, a Ute squaw, of the Kah-poh-teh band, northern New Mexico.

New Mexico stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who a... More

Shee-zah-nan-tan, Jicarilla Apache brave in characteristic costume, northern New Mexico.

Shee-zah-nan-tan, Jicarilla Apache brave in characteristic costume, no...

Picryl description: Public domain image of a costume accessory, fashion design, free to use, no copyright restrictions.

Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the fore-ground.

Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the f...

Idaho stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assemb... More

Orchi's flower.19th century US expeditions surveys.

Orchi's flower.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Cave, Limon Bay.19th century US expeditions surveys.

Cave, Limon Bay.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Orchi's flower.19th century US expeditions surveys.

Orchi's flower.19th century US expeditions surveys.

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

The Anna.19th century US expeditions surveys.

The Anna.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Grand canon of the Yellowstone. Wyoming stereoscope card, 19th century.

Grand canon of the Yellowstone. Wyoming stereoscope card, 19th century...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Lower falls of the Yellowstone, 350 feet.

Lower falls of the Yellowstone, 350 feet.

Wyoming stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Mountain of the Holy Cross.19th century US expeditions surveys.

Mountain of the Holy Cross.19th century US expeditions surveys.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

Lower falls of the Yellowstone, 550 feet.

Lower falls of the Yellowstone, 550 feet.

Wyoming stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Hot springs on Gardiner's River, Cap of liberty.

Hot springs on Gardiner's River, Cap of liberty.

Montana stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

Column rocks.19th century US expeditions surveys.

Column rocks.19th century US expeditions surveys.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Lower Basins.19th century US expeditions surveys.

Lower Basins.19th century US expeditions surveys.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Cascades, head of Middle Creek.19th century US expeditions surveys.

Cascades, head of Middle Creek.19th century US expeditions surveys.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

[View down the Cañon.]19th century US expeditions surveys.

[View down the Cañon.]19th century US expeditions surveys.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Leaning tower.19th century US expeditions surveys.

Leaning tower.19th century US expeditions surveys.

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Pu-ni-wu-ni Tump (the watch tower).

Pu-ni-wu-ni Tump (the watch tower).

Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

A fall.19th century US expeditions surveys.

A fall.19th century US expeditions surveys.

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

View across Black Cañon. The grand walls in perspective.

View across Black Cañon. The grand walls in perspective.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

Mountain transportation. Pack mule, pack, and packers.

Mountain transportation. Pack mule, pack, and packers.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of mo... More

View of Grand Cañon walls, near mouth of Diamond River.

View of Grand Cañon walls, near mouth of Diamond River.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

The "Vermillion Cliff," a typical plateau edge, as seen from Jacob's Pool, Arizona.

The "Vermillion Cliff," a typical plateau edge, as seen from Jacob's P...

Arizona Stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who asse... More

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