River Group
The second River Group point on this site, a thermal spring in Yellowstone's Gallatin County with the hotter temperature of the pair on record, a few degrees over boiling. A short walk, around a third of a mile, from the nearest road. West Yellowstone is the nearest town listed. Open park land. The record links it to Azure Spring in the Lower Geyser Basin.
The road is unnamed on file, but the distance is small, three tenths of a mile. Elevation a little under 7,200 feet. Snow on record runs around twelve feet, with the annual average temperature in the mid thirties. Park Service ground. Nothing else about the terrain is on record.
Above boiling. Do not approach the water. Winter months are the ones the record rates highest, and with twelve feet of snow that means skiing in. Big Springs group area in Island Park is the nearest campground on record, about twenty-one miles. No fee listed. Check the park for current access to this basin.
Wikipedia's entry for Azure Spring, which the record ties to this point, describes a hot spring in the Lower Geyser Basin of Yellowstone, with a water temperature of 174 degrees and Pocket Basin Geyser close by. The USGS also holds a site record here.
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Overview Big Springs Group Area is located 22 miles south of West Yellowstone, Montana in beautiful Island Park, Idaho at an approximate elevation of 6,300 feet. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities.Recreation Big Springs is the headwaters of Henry's Fork and is one of the largest springs in the country. Henry's Fork is considered one of the best fly-fishing streams in the nation. Fishermen cast for rainbow and brook...
River Group sits at 7,192 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 29% stronger than at sea level, so bring sunscreen and drink more water than you normally would.
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River Group is road-accessible, so you can bring more gear. The water is dangerously hot, so bring water shoes and test pools carefully. Cold air temperatures make a changing robe or warm layers essential.
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