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“Bite-Size Bits of Local, National, and Global History”
Yellowstone National Park in Park County, Wyoming — The American West (Mountains)
 

Solfatara

Unstable Ground

 
 
Solfatara Marker image. Click for full size.
By Bill Coughlin, July 29, 2015
1. Solfatara Marker
Inscription.
This hillside is venting. As sulfuric acid, gasses, and steam escape, they create a barren and very dangerous landscape called a solfatara: scalding mud and steam are often barely covered by hot, crumbling, decomposed rock. Unlike other geothermal features, this solfatara’s high concentration of sulfuric acid breaks down the surrounding rock making a confined “pluming system” unlikely – the gases and steam escape less dramatically.
 
Erected by National Park Service.
 
Location. 44° 43.658′ N, 110° 42.104′ W. Marker is in Yellowstone National Park, Wyoming, in Park County. Marker can be reached from Grand Loop Road (U.S. 89). Click for map. Marker is located in the Porcelain Basin at the Norris Geyser Basin. Marker is in this post office area: Yellowstone National Park WY 82190, United States of America.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Norris Geyser Basin (within shouting distance of this marker); Fumaroles (about 300 feet away, measured in a direct line); Porcelain Springs (about 400 feet away); a different marker also named Norris Geyser Basin (about 600 feet away); Living Thermometer
Solfatara Marker image. Click for full size.
By Bill Coughlin, July 29, 2015
2. Solfatara Marker
(about 600 feet away); The Norris Area (about 600 feet away); a different marker also named Norris Geyser Basin (about 600 feet away); The National Park System (about 600 feet away). Click for a list of all markers in Yellowstone National Park.
 
More about this marker. A photograph on the right side of the marker has a caption of “Sometimes a solfatara has larger, well-defined vents like those at Roaring Mountain (just north of Norris Junction).”
 
Categories. Natural Features
 
Marker at the Norris Geyser Basin image. Click for full size.
By Bill Coughlin, July 29, 2015
3. Marker at the Norris Geyser Basin
 
 
Credits. This page originally submitted on , by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 107 times since then and 4 times this year. Photos:   1, 2, 3. submitted on , by Bill Coughlin of North Arlington, New Jersey. This page was last revised on June 16, 2016.
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