From the Mountain Town News in Colorado:

CARBONDALE, Colo. – In the mid-1920s, Arthur Carhart turned his attention to the wolves vanishing in Colorado, the result of a methodical extermination conducted by the U.S. Biological Survey.

Carhart had earlier earned some attention when, as a young employee of the new U.S. Forest Service, he had been assigned the task of plotting roads and cabin spaces along the shores of Trappers Lake, on the edge of the Flattops of northwestern Colorado.

Click here for the full story.