66 
The Colorado River 
agriculture on the river, except Wonsits Valley, Brown’s Park, 
and a few minor places, is below Black Canyon, in the stretches 
I have called the alluvial and the canyon-valley divisions. In 
the latter short canyons separate extensive valleys with wide 
alluvial bottoms capable of high cultivation, though often 
subject to overflow. Almost anything will grow there. Vast 
groves of cottonwood and mesquite exist. In the alluvial 
Young Warriors of the North. 
Photograph by C. R. Savage. 
division, the last stretch of the river, from the Gila down, cot¬ 
ton and sugar cane would probably grow. This is the only 
division where the water of the river can be extensively di¬ 
verted. At the mouth of the Gila an old emigrant road to Cali¬ 
fornia crossed, and another here in this Green River Valley. 
A third route of travel was by way of Gunnison’s Crossing; 
and a fourth, though this was seldom traversed, was by the 
Crossing of the Fathers, some thirty-five miles above the pre¬ 
sent Lee’s Ferry. In Green River Valley, Bonneville built his 
