Castle Creek is a tributary of the
North Fork Toutle River
The North Fork Toutle River is a tributary of the Toutle River in southwestern Washington in the United States. The river has its headwaters near Spirit Lake, on the north side of Mount St. Helens, and flows to the Toutle River, about upstream ...
on the flank of
Mount St. Helens
Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United St ...
in
Washington state
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington ...
. It rises about two miles (three kilometers) northwest of the crater rim ()
and flows generally to the northwest. The outflow of
Castle Lake joins the creek at the lake's north end () after traveling a few hundred meters on the South Fork Castle Creek.
The National Map
''The National Map'' is a collaborative effort of the United States Geological Survey (USGS) and other federal, state, and local agencies to improve and deliver topographic information for the United States. The purpose of the effort is to prov ...
, United States Geological Survey, accessed 2018-07-13 It joins the North Fork Toutle River at , elevation 2,200 feet.
[
Castle Lake was created by an avalanche subsequent to the May 18, 1980 ]eruption of Mount St. Helens
On March 27, 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States. A series of phreatic blasts occurred from the summit and escalated until a major explosive eru ...
which blocked South Fork Castle Creek.[ marked historical with comment "Feature is now part of Castle Lake, formed by a dam created resulting from the eruption of Mount Saint Helens in 1980."]
References
Rivers of Cowlitz County, Washington
Rivers of Skamania County, Washington
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