We’re on a cliff roughly 3,500 feet above the Colorado River at the tip of the Great Thumb Mesa, a spectacular formation that thrusts out from the South Rim of the Grand Canyon like the bow of ...

Oh yeah and I did the math wrong in comparing the size of the cave to the grand canyon, turns out I'm better at geology than I am at math, go figure. The grand canyon is actually MUCH larger.

Enshi Grand Canyon-Tenglongdong Cave UNESCO Global Geopark in the southwest of Hubei Province, China, is home to world-famous erosion and dissolution landscapes and the rich cultural heritage of the ...