Mammoth in Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
Riverside Geyser
Photographed by Bill Coughlin, July 31, 2015
1. Riverside Geyser Marker
Across the Firehole River is Riverside Geyser, one of the most predictable and consistent geysers in Yellowstone. Beginning an hour or two before an eruption, water pours over the cones edge, and splashing and bubbling become more visible. Then, water and steam arch over the river to heights of 75 feet. The eruption will last about 22 minutes. As the water diminishes during the eruption, steam continues to billow out, and, when the light is right, rainbows often form in the misty air.
Fast Facts:
Riverside Geyser is a cone-type geyser.
Eruptions are very predictable, taking place every 5.5 to 7.5 hours.
Why is Riverside Geyser so Predictable
Unlike many other geysers and hot springs in the Upper Geyser Basin, Riverside may not be connected to nearby features, thus, has a relatively constant source of heat and water. It is uniquely unaffected by other forces such as earthquakes that can shake up underground plumbing systems by closing old vents and creating new ones, and changing previous patterns of water circulation.
Erected by National Park Service.
Topics. This historical marker is listed in this topic list:
this page online
Location. 44° 28.395′ N, 110° 50.486′ W. Marker is in Yellowstone National Park, Wyoming, in Park County. It is in Mammoth. It can be reached from Lower Grand Loop Road (U.S. 287), on the left when traveling south. Marker is located in the Upper Geyser Basin in Yellowstone National Park. Touch for map. Marker is in this post office area: Yellowstone National Park WY 82190, United States of America. Touch for directions.
Regionally, this marker is in the Bighorn Basin and in Greater Yellowstone. It is also in the American Mountain West and in the Lewis & Clark Corridor. Globally, it is in North America, the Rocky Mountains, the Western Hemisphere, the Western World, and the Anglosphere.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Grotto Geyser (about 600 feet away, measured in a direct line); Fading Glory (approx. 0.2 miles away); Giant Geyser (approx. 0.2 miles away); Daisy Geyser (approx. Ό mile away); Beauty and Chromatic Pools (approx. 0.4 miles away); Grand Geyser (approx. half a mile away); Crested Pool (approx.
Photographed by Bill Coughlin, July 31, 2015
2. Riverside Geyser Marker
Photographed by Bill Coughlin, July 31, 2015
3. Riverside Geyser
Photochrom Postcard by the Detroit Photographic Company, 1902
4. Riverside Geyser, Yellowstone National Park
Credits. This page was last revised on February 16, 2023. It was originally submitted on September 9, 2015, by Bill Coughlin of Woodland Park, New Jersey. This page has been viewed 459 times since then and 20 times this year. Photos: 1, 2, 3. submitted on September 9, 2015, by Bill Coughlin of Woodland Park, New Jersey. 4. submitted on September 10, 2015.
