 Soon, another location to the south was found to be just as valuable. In the 1820s, a group of mountain man led by Jet Smith came across country, came to the Green River Valley. They discovered tons of beaver here too, plus friendly Native Americans, friendly Shoshone Indians who wanted to trade with them. Clint Gilchrist shares the story from the Museum of the Mountain Man in Pinedale, Wyoming, a town that sits in the Green River Valley that Jedediah Smith explored.