In the 1920s, Charles Sternberg, in his early seventies, collected dinosaur fossils in the badlands south of Farmington in San Juan County. © San Diego Society of Natural History, all rights reserved. In the 1920s, Charles Sternberg, in his early seventies, collected dinosaur fossils in the badlands south of Farmington in San Juan County. © San Diego Society of Natural History, all rights reserved.