On the Rise
Magma is moving and pushing underground forcing the hill in front of you to rise! two of these bulges or "resurgent domes" have been found in the caldera. From here, you can see part of the Sour Creek dome - an oval-shaped hill about ten miles long and six miles wide.
A Big Cooking Pot
Bubbling, steaming, and churning within Yellowstone's caldera - a Spanish word for a large cooking pot - are thousands of mudpots, fumaroles, hot springs, and geysers.
Where's the Rim?
Yellowstone's caldera - 30 miles wide and 45 miles long - is so huge, it is difficult to imagine the massive eruption that created it! After the volcano exploded, lava continued to flow, filling in much of the caldera and making the crater and its rim hard to see.
By comparing new surveys with benchmark elevations, geologists have determined that the Yellowstone caldera is rising and falling as magma and hydrothermal fluids move below.
Location. 44° 37.677′ N, 110° 25.997′ W. Marker is in Yellowstone National Park, Wyoming
Other nearby markers. At least 8 other markers are within walking distance of this marker. Sulphur Caldron (here, next to this marker); Dragon's Mouth Spring (approx. ľ mile away); Mud Volcano (approx. ľ mile away); Cooking Hillside (approx. 0.3 miles away); Grizzly Fumarole (approx. 0.3 miles away); Mud Geyser (approx. 0.4 miles away); Churning Caldron (approx. half a mile away); Black Dragonís Caldron (approx. half a mile away). Touch for a list and map of all markers in Yellowstone National Park.
Categories. • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on August 20, 2011, by Bill Pfingsten of Bel Air, Maryland. This page has been viewed 397 times since then and 19 times this year. Photos: 1. submitted on August 20, 2011, by Bill Pfingsten of Bel Air, Maryland. 2, 3. submitted on September 24, 2015, by Bill Coughlin of North Arlington, New Jersey. 4. submitted on August 20, 2011, by Bill Pfingsten of Bel Air, Maryland.