Career
While working in Leadville, Colorado, he discovered features dating to the proterozoic. He is also known for his work involving the Arapahoe Formation, the Leadville Mining District, and the Colorado Mineral Belt.
While working in Leadville, Colorado, he discovered features dating to the proterozoic. He is also known for his work involving the Arapahoe Formation, the Leadville Mining District, and the Colorado Mineral Belt.
