One of the trappers who had fallen in love with the country along the Black Fork was Jack Robinson, a man who thoroughly enjoyed a home and had great influence among several Indian tribes. For many years he was the personal friend of Jim Bridger and a great admirer of that renowned trapper, trader, Indian fighter and guide. He it was who called Bridger's attention to the many advantages possessed by the little valley of Black's Fork. There was beaver in all the streams of that country, buffalo, deer and elk in the vicintiy, and besides, it was beginning to be a highway used by those going to and from the Columbia River. These talks between Uncle Jack Robinson and Jim Bridger finally resulted in the latter's erection of a trading house at that point. This post was located in the valley of the Black Fork, a tributary of Green River, two and one-half miles above Smith's Fork.