I had the Big Horn river explored from Wind River mountain to my place of embarkation.

The Yellowstone river is a beautiful river to navigate.

After an unremitting and severe labour of two days, we returned to our old encampment with the loss of some of my horses, and my men excessively fatigued.

Snow is so common that I have omitted to note its falling at least two days out of Three.

We continued to move forward without loss of time, hoping to be able to reach the wood described by the Indians before all our horses should become exhausted.

The only very rugged part of the route is in crossing the Big Horn mountain, which is about 30 miles wide.

Some of them profess to be well acquainted with all the principal waters of the Columbia, with which they assured me these waters had no connection short of the ocean.