West Thumb Lake is not to be confused with West Thumb Geyser Basin. The caldera created West Thumb Lake, and the underlying Yellowstone hotspot keeps West Thumb Geyser Basin active. See Fig. 22Archived June 10, 2013, at the Wayback Machine.
West Thumb Lake is not to be confused with West Thumb Geyser Basin. The caldera created West Thumb Lake, and the underlying Yellowstone hotspot keeps West Thumb Geyser Basin active. See Fig. 22Archived June 10, 2013, at the Wayback Machine.