Extreme heat from a massive supervolcano underneath Yellowstone National Park is melting a major roadway at the popular summertime tourist attraction. Park officials have closed the area to visitors. Firehole Lake Drive, a 3-mile-plus offshoot of the park’s Grand Loop that connects the Old Faithful geyser and the Madison Junction, is currently off limits. Park operators say the danger of stepping on seemingly solid soil into severely hot water is “high.” “It basically turned the asphalt into soup. It turned the gravel road into oatmeal,” Yellowstone spokesman Dan Hottle said. The affected roadway offers access to the Great Fountain Geyser, White Dome Geyser, and Firehole Lake. “There are plenty of other great places to see thermal features in the park,” park public affairs chief Al Nash told The Weather Channel. “I wouldn’t risk personal injury to see these during this temporary closure.” While thermal activity under the park often gives way to temperature fluctuations that can soften asphalt throughout Yellowstone, Hottle said the latest wave seems worse than usual. via RT USA.