NYPL's Public Domain Archive
The media on this page is placed in the public domain by New York Public Library, an essential provider of free books, information, ideas, and education for all New Yorkers for more than 100 years. Founded in 1895, NYPL is the nation’s largest public library system, featuring a unique combination of 88 neighborhood branches and four scholarly research centers, bringing together an extraordinary richness of resources and opportunities available to all. Serving more than 17 million patrons a year, and millions more online, the Library holds more than 51 million items, from books, e-books, and DVDs to renowned research collections used by scholars from around the world.
Disclaimer: The media on this page is placed in the public domain by New York Public Library, 445 Fifth Avenue, 4th Floor New York, NY. Read more: https://www.nypl.org/research/collections/digital-collections/public-domain. This website is developed as a part of the world's largest public domain archive, PICRYL.com, and not developed or endorsed by NYPL, https://www.picryl.com
![Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvY29hbC1mb3JtYXRpb24tbWFuaXRvdS1ncmFuZC1jYXZlcm5zLWYzODU3MS02NDAuanBn/320/210/jpg "Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado")
![Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvY29hbC1mb3JtYXRpb24tbWFuaXRvdS1ncmFuZC1jYXZlcm5zLTYwMWM1Ny02NDAuanBn/40/26/webp "Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado")
![Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvY29hbC1mb3JtYXRpb24tbWFuaXRvdS1ncmFuZC1jYXZlcm5zLWIwZDQ4ZS02NDAuanBn/40/25/webp "Coal formation [?], Manitou Grand Caverns. - Sterescope Card, Colorado")
![Grand Canon [Cañon] of the Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NjAvMDEvMDEvZ3JhbmQtY2Fub24tY2Fub24tb2YtdGhlLWNvbG9yYWRvLTAyMjFiZC02NDAuanBn/40/20/webp "Grand Canon [Cañon] of the Colorado")
![Grand Canon [Cañon] of the Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NjAvMDEvMDEvZ3JhbmQtY2Fub24tY2Fub24tb2YtdGhlLWNvbG9yYWRvLTYyOGYyOS02NDAuanBn/40/20/webp "Grand Canon [Cañon] of the Colorado")
![Grand Canon [Cañon] of the Colorado](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvZ3JhbmQtY2Fub24tY2Fub24tb2YtdGhlLWNvbG9yYWRvLThjYmRiOC02NDAuanBn/40/20/webp "Grand Canon [Cañon] of the Colorado")
