Sir William Drummond Stewart of Scotland, often regarded as Wyoming's first tourist, attended every summer rendezvous from 1833 to 1838 during the height of the mountain man fur trade, and four of those gatherings took place nearby at the confluence of Horse Creek and the Green River. The glacier-carved lake was evidently a favorite place of Stewart, and in 1837 artist Alfred Jacob Miller accompanied him and painted the first pictures of the area, including the mountain lakes that inspired them both. Although the last rendezvous was held in 1840, Stewart and mountain man William Sublette returned again in 1843, camped here for 10 days in August, visited old Shoshone Indian and trapper friends, raced horses on a flat to the west near the New Fork River, and with a small party floated to the head of the lake in an India-rubber boat brought especially for that purpose. At the time, the lake was known as both Stewart's Lake and Loch Drummond. In 1842, explorer John C. Fremont, guided by Kit Carson on his first trip west, climbed what he believed was the highest summit in the Wind River Mountains, and that peak overlooking the lake was later named Fremont's Peak. Much later, despite the lake already having been named in honor of Stewart, supporters of Fremont called it Fremont Lake even though John C. Fremont had never actually been there. At 9 miles long, 1 mile wide, and 600 feet deep, Fremont Lake is the second largest natural lake in Wyoming.