The site is located within Browns Park National Wildlife Refuge in Moffat County, Colorado.

Brown's Hole continued to be a rendezvous point for fur trappers and traders when the fort was abandoned.

[4] The trading post was established between 1832 and 1837 by Phillip Thompson, Prewitt Sinclair, and William Craig.

Made of adobe and cottonwood,[3][5] it was described as a "hollow square of one story cabins, with roofs and floors of mud... Around these were found conical skin lodges of the squaws of the white trappers, who were away on their fall hunt.

[5] Kit Carson and other mountain men stayed at the trading post,[5] which served many purposes.