Grand Falls, AZ

Grand Falls is a natural waterfall system located 30 miles (48.3 kilometers) northeast of Flagstaff, Arizona in the Painted Desert on the Navajo Nation. At 185 feet (56 meters) tall, it is taller than Niagara Falls. It dumps snow melt or monsoon rain into the Little Colorado River below. It is known for its extremely muddy flow, which is a major contributor to Little Colorado River opacity.