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 Lodore.

From here on up to the Wind River Range the stream is flanked by occasional cliffs and buttes, but the country is comparatively open, and the many tributaries often have fine grassy bottoms.

This was the locality of the great rendezvous of the period from 1825 to 1835, and even later.
Green River Valley is an elevated region, from six thousand to seven thousand 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.