An aerial drone photo taken on April 10, 2022 shows a view in Guilin, south China's Guangxi Zhuang Autonomous Region. Guilin, ...

John Wesley Powell A professor of geology at Illinois Wesleyan ... leaving behind the layers named Kaibab Limestone, Toroweap Formation, and Hermit Shale. The Coconino Sandstone layer was ...

"Limestone pavements are a habitat of high conservation value and they are protected for their unusual geology and the plants and animals that live in them. "But if we are to conserve them for ...