Sub-bottom Acoustic Profiling Sled
A sub-bottom acoustic profiling sled was towed behind the research vessel to map the thickness of moss sediments around Wizard Island.
U.S. Geological Survey
When living moss dies it forms peat sediments. The peat sediments are located under presently growing moss and can be 10 meters (30 feet) thick in some places!
Did You Know?
At 1,943 feet deep, Crater Lake is the deepest lake in the United States and one of the ten deepest lakes in the world!