Farther west, the first known sighting of a free-roaming horse in the Great Basin was by John Bidwell near the Humboldt Sinks in 1841. Although John Charles Fremont noted thousands of horses in California, the only horse sign he spoke of in the Great Basin, which he named, was tracks around Pyramid Lake, and the natives he encountered there were horseless. In 1861, another party saw seven free-roaming horses near the Stillwater Range. For the most part, free-roaming horse herds in the interior of Nevada were established in the latter part of the 1800s from escaped settlers' horses.