Four days more took them across it, and over several plains, watered by beautiful little streams, tributaries of Mad River.

Near one of their encampments there was a hot spring continually emitting a cloud of vapor.

These elevated plains, which give a peculiar character to the mountains, are frequented by large gangs of antelopes, fleet as the wind.
On the evening of the 8th of October, after a cold wintry day, with gusts of westerly wind and flurries of snow, they arrived at the sought-for post of Mr.Henry.Here he had fixed himself, after being compelled by the hostilities of the Blackfeet, to abandon the upper waters of the Missouri.

The post, however, was deserted, for Mr.Henry had left it in the course of the preceding spring, and, as it afterwards appeared, had fallen in with Mr.Lisa, at the Arickara village on the Missouri, some time after the separation of Mr.Hunt and his party.
The weary travellers gladly took possession of the deserted log huts which had formed the post, and which stood on the bank of a stream upwards of a hundred yards wide, on which they intended to embark.
There being plenty of suitable timber in the neighborhood, Mr.Hunt immediately proceeded to construct canoes.

As he would have to leave his horses and their accoutrements here, he determined to make this a trading post, where the trappers and hunters, to be distributed about the country, might repair; and where the traders might touch on their way through the mountains to and from the establishment at the mouth of the Columbia.