Marble Mountain-Trout Creek Hill volcanic field (MMTC) is a volcanic field located in Washington, US.
Trout Creek Hill is a small Pleistocene basaltic shield volcano in Washington, United States.
It produced a lava flow about 340,000 years ago that traveled 20 km (12 mi) southeast, which dammed the Columbia River for a short period of time.
[3] West Crater is a small andesitic lava dome with associated lava flows in southern Washington.
This Skamania County, Washington state location article is a stub.