3o6 
The Colorado River 
shade trees, and vines, and the like, so that in a very few 
years there was a condition of comfort only attained by a non- 
Mormon settlement after the lapse of a quarter of a century. 
In the valley below Kanab a base line was measured nine 
miles long, and from this starting-point our work of triangu¬ 
lating the country was carried on. Trips with pack-trains to 
establish geodetic stations and examine the lay of the land 
Renshawe, Riley, Dellenbaugh, Thompson, Mrs. Thompson. 
Winter Headquarters at Kanab, 1872-3. U. S. Colo. Riv. Exp. 
Central Tent. 
Photograph by J. K. Hillers. 
were made in all directions. Of course the reader understands 
that up to this time no map had been made of this vast region 
north of the Colorado, and that many parts of it were entirely 
unknown. The Mormons had traversed certain districts, but 
they only knew their own trails and roads and had as yet not 
had time to carry on any unnecessary examinations away 
