Although the 2.2 mile, mostly level path to Sentinel Meadows in Yellowstone National Park's Lower Geyser Basin leads quite close to several large hot springs and geysers, rather more can be seen by careful walking off trail. Features include Red Terrace Spring (Queens Laundry), Steep Cone, Dumbbell Spring, The Bulgers and Mound Spring. (mp4; 2:06 min; 18 mb)