Local Grand Fall Dunes in the Eyes of Scientific Research
The Grand Falls Dune Field is located ~70 km northeast of Flagstaff, Arizona, 2 km east of Grand Falls, and just north of the Little Colorado River on the Navajo Nation and is known to have formed only six decades ago. It is located upstream from a large waterfall known as both Grand Falls and Chocolate Falls, a popular tourist attraction.
Source: usgs.gov