Zane Grey 
Last of the Plainsmen 

This historical novel chronicles Colonel "Buffalo" Jones (aka, Buff), the last of the plainsmen. He and several associates venture into the region of Buckskin Mountain, along the northern rim of the Grand Canyon (Arizona). In a continuing quest to establish dominion over wild animals, Jones leads his men on a journey to capture untamed cougars and bring them back alive. After several run-ins with Navajo, Commanche, Yellow Knife and Great Slave Indians, Jones captures a wild cougar.