Two distinct rock layers, with the lower one being a dark red and the upper a gray-green. Both have a soft, lumpy look. The gray-green Chinle Formation was deposited during a very warm, wet time, with swamps a More
Public domain image of the vintage map from NYPL Lionel Pincus and Princess Firyal Map Division, free to use, no copyright restrictions image. The Lionel Pincus and Princess Firyal Map Division is one of the wo More
Public domain image of the vintage map from NYPL Lionel Pincus and Princess Firyal Map Division, free to use, no copyright restrictions image. The Lionel Pincus and Princess Firyal Map Division is one of the wo More