Location: Norris Geyser Basin
Spouting from five vents, Ledge Geyser is totally unpredictable and rarely erupts, but is found to spray water over heights of 80 feet all around the basin when it does.
Ledge is the second largest geyser in the Norris Geyser Basin, capable of shooting water 125 feet into the air. Because it erupts at an angle, however, the water will sometimes reach the ground 220 feet away. It has at times in the past erupted at regular intervals of 14 hours. The geyser became inactive between 1979 and late 1993. It erupted on a fairly regular cycle of every four to six days in 1994 and 1995.