Cliff Geyser erupting (late afternoon, 5 August 2013) 8
Cliff Geyser is a frequently-erupting geyser in the Black Sand Basin of Yellowstone's Upper Geyser Basin. It sits on the banks of Iron Spring Creek. A small cliff of geyserite has formed between the creek and the geyser's pool. Eruptions are small to moderately large, moderately intermittent bursts from a low pool or an overflowing pool.