G. Arthur Cooper - Field Notes from the Glass Mountains, 1959

Did you know that the Sierra Diablo Mountains were formed 950 million years ago from Precambrian volcanoes? Since then, the mountain range has been the site of everything from historic battles and animal sanctuaries, to paleontological research--like fossil expert G. Arthur Cooper's. Cooper, a paleobiologist with the National Museum of Natural History, took these notes in the Sierra Diablo and Glass Mountains of Texas in 1959. Help other volunteers transcribe Cooper's field book for future generations of researchers!