Support Your Park
Crater Lake Natural History Association
The Crater Lake Ski Patrol
Friends of Crater Lake National Park
Crater Lake National Park Trust
Did You Know?
The depth of Crater Lake was first measured in 1886 with a simple sounding machine that consisted of a crank and a spool of piano wire. Those first measurements showed the lake to be 1,996 feet deep - not far off from the depth of 1,943 feet that was measured with high tech equipment in 2000!