Entertainment Rock-stacking tourists are damaging environment at Michigan's Tahquamenon Falls Published: Aug. 27, 2018, 11:30 a.m.

The Wave is made of Jurassic-age Navajo sandstone, 190-million-year-old sand dunes turned to rock. As spectacular as the Wave looks in this photo, visitors say experiencing it in person is ...

According to the forest service, there are at least 2,400 rock art sites in Los Padres National Forest, spanning a rugged wilderness of sandstone canyons and outcroppings, meadows and mountaintops ...

Red Rock Canyon is characterized by a series of canyons and parallel, sandstone ridges, (called “hogbacks”), sculpted by erosion because of the area’s uplifted strata.

The beautiful orange and gray sandstone with featured and varied holds offers some 4,000 boulder problems as well as some sport and trad climbing routes. Be prepared for coarse rock that can be ...

A museum of prehistoric rock art Among Tassili’s most beautiful areas is Tadrart Rouge, accessible via 4x4 tours from the oasis town of Djanet, a two-and-a-half-hour flight from the Algerian ...