Lava Canyon Falls drops 200 feet (61 meters) along the Muddy River in Skamania County, Washington.
Lava Canyon Falls was discovered after the 1980 eruption of Mount St. Helens, from which a lahar and flood scoured out a canyon that had been filled with dirt and mud for 1,800 years.
The Muddy River's course was redirected to that canyon as a result of the lahar and the floods, and it drops 1,400 feet (430 meters) in 2 miles (3.2 km).
On the southeast side of Mount St. Helens National Volcanic Monument at 46°10′12″N 122°04′57″W / 46.1701°N 122.0826°W / 46.1701; -122.0826, at 2,440 feet.
This Skamania County, Washington state location article is a stub.