Fremont's Week in Sublette County
About 7 miles east of Boulder on State Highway 353

On June 10, 1842, Lt. J.C. Fremont left St. Louis to explore the Wind River Mountains, with Kit Carson as guide, Charles Preuss, as topographer, L. Maxwell, hunter, and 20 Canadian voyageurs, including Basil LeJeunesse. Eight two-wheeled mule-drawn carts were used as far as the Platte River. The party crossed South Pass August 8 and camped here at “Two Buttes” August 9. Leaving 10 men at Boulder Lake, the lieutenant ascended Fremont Peak August 15, stayed here again August 17, and on the 19th re-crossed South Pass. So ended Fremont’s Exploration of the Wind River Mountains and his stay in Sublette County.