
Cliff Geyser is a clear pool in a geyserite ring that sits along the river bank. Round, bulbous geyserite fills the ring and forms the outer edge, but outside the ring pea-sized geyserite covers the surface. Hard sinter covers the further surrounding area. Some orange thermophiles exist in the area where Cliff Geyser drains. While Cliff Geyser has a varied history, recently it seems to be following a cycle of draining, then minor eruptions while the area fills, eventually resulting in a major eruption, the pool drains and remains quiet for a period before starting the cycle again. The interval between cycles can be up to 35 minutes. Cliff Geyser has an average temperate of 174.3°F (79.1°C), an average pH of 6.1, and an average conductivity of 2295 uS/cm. Geysers Geysers have constrictions in their plumbing systems that prevent water from moving freely to the surface where heat would escape. Water beneath the constrictions creates a buildup of steam. Eventually the steam pushes water past the constrictions and the geyser erupts. Use Caution in Hydrothermal Areas Stay on boardwalks and designated trails. Hydrothermal water can severely burn you. Never run, push, or shove. Supervise children at all times. Do not scratch hydrothermal mats. You are responsible for your safety. Think safety, act safely. Yellowstone is a dangerous place.