G. A. Henty 
In the Heart of the Rockies [PDF ebook] 
A Story of Adventure in Colorado

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Paid several visits to the country in 1878 and the following years in quest of sport, and was the first white man to penetrate the recesses of the higher mountains. At that time the Indians had almost entirely deserted the country. For the details of the dangers and difficulties of the passage through the canons I am indebted to the official report of Major Powell, published by the United States govern.