running water
water erosion
Erosion by a river (Colorado River)
me
Bryce Canyon contains predominantly sedimentary rocks, with the most prominent being the Claron Formation composed of limestone, siltstone, and mudstone. The hoodoos in the canyon are formed from erosion of these sedimentary rocks over millions of years.
Rocks exposed in the Grand Canyon include limestones, cherts, shales, schists, sandstones, and granites.
white water rafting
The landform you're describing is called a canyon. Canyons are formed by the erosion of rivers over thousands or millions of years, creating steep sides and unique geological formations.
There are sea fossils at the top of the canyon from the seas that once covered the low plains there.
A mix of sandstone and other sediment rocks
there is many minerals that can be found such as granite,sand, and other materials that may be included int he rock limestone family of the grand canyon
Oh, dude, the Grand Canyon Skywalk was created in 2007. It's like this glass bridge that lets you walk out over the canyon and feel like you're floating in mid-air. Pretty cool, but also kind of terrifying if you're afraid of heights.
Sand dunes are formed by wind, which is one kind of erosion.