• Wizard Island

    Crater Lake

    National Park Oregon

Sub-bottom Acoustic Profiling Sled

A sub-bottom Acoustic Profiling Sled

A sub-bottom acoustic profiling sled.

NPS

A sub-bottom acoustic profiling sled was towed behind the research vessel to map the thickness of moss sediments around Wizard Island.

 
Aquatic moss from Crater Lake.

Moss, collected from Crater Lake, is examined aboard the boat.

NPS

Green moss surrounds Wizard Island from approximately 26 meters (85 feet) to 140 meters (460 feet) depth.
 
Maps of moss sediments and sampling around Wizard Island.

Maps of moss sediments and sampling 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?

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!