65 
Green River Valley 
Horseshoe, and Flaming Gorge, aggregating about lo miles. 
There are there no rapids worth mentioning, but the scenic 
beauty is entrancing. The walls are from 1200 to 1600 feet, in 
places extremely precipitous. Flaming Gorge, with walls 1300 
feet, is particularly distinguished by being the beginning of the 
long series of close 
canyons. The river 
enters suddenly 
from Green River 
Valley, repeating 
on a smaller scale 
the conditions at 
the entrance to Lo- 
dore. From here on 
up to the Wind 
River Range the 
stream is flanked by 
occasional cliffs and 
buttes, but the 
country is compara¬ 
tively open, and the 
many tributaries of¬ 
ten have fine grassy 
bottoms. This was 
the locality of the 
great rendezvous of 
the period from 
1825 to 1835, and 
even later. 
Green RiverVal- 
ley is an elevated region, from six thousand to seven thou¬ 
sand feet above sea. It stretches from the Wind River 
Mountains on the north to the Uintas on the south, and 
is bounded westwardly by the Wyoming Range, and on the 
east merges into the Laramie Plains. The drainage exit 
is through the Uintas, as noted, by means of the canyons 
heading at Flaming Gorge. There are here opportunities for 
extensive farming by irrigation. The only other chance for 
Specimen of a Navajo. 
Photograph by J. K. Hillers, U. S. Geol. Survey. 
