Grand Falls: Arizona’s Chocolate Waterfalls

By Philkon Phil Konstantin – Own work, Public Domain, Link

Grand Falls , known for its extremely muddy flow, is a natural waterfall system located in 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.  Grand Falls was formed when lava from nearby Merriam Crater flowed into the Little Colorado River, creating a lava dam. The river was forced to reroute itself around the dam and Grand Falls formed where the river rejoins its original course.

Frank Kovalchek [CC BY 2.0], via Wikimedia Commons