How did that happen?
What is the name of the Mt. that became Crater Lake?
Mt. Mazama
Was gold ever found at Crater Lake?
No, gold was never found at Crater Lake.
What country has the most active land volcanoes?
The U.S.
What mountain range is Crater Lake apart of?
The Cascades.
What is the deepest lake in North America?
The Great Slave Lake (in Canada). Crater Lake is second deepest.
How long did it take for Crater Lake to be filled with water?
About 300 years of collected precipitation.
How many water inlets and outlets does Crater Lake have?
None.
When was Crater Lake National Park established?
1902, 5th oldest in the U.S. and is the only national park in Oregon.
What was a recent volcanic eruption in the Cascades?
Mt. St. Helens in 1980.
What is a subduction zone?
When one tectonic plate goes underneath the other.
How long ago did Mt. Mazama erupt?
7,700 years ago.
How was Crater Lake discovered by settlers?
Crater Lake was "found" by settlers in 1853 looking for gold.
What is the world's tallest land volcano?
Mauna Kea, in Hawaii (13,796 ft. tall)
Why are there volcanoes in the Cascades?
The Cascades are on the subduction zone of the Pacific Plate and the North American Plate.
What is a divergent Boundary?
When two tectonic plats move away from each other.
What is the elevation of Crater Lake now?
6,178 ft. at the rim.
Are there any islands in Crater Lake?
Yes one, Wizard Island
How far did the ash from eruption of Mt. Mazama go?
The ash went as far as Pacific Northwest and Southern Canada.
What Cascade mountain passes between Oregon and California?
The Siskiyous.
How many active land volcanoes are in the U.S.
169 active land volcanoes.
How tall was Mt. Mazama before it erupted?
Around 12,000 ft. tall.
How deep is Crater Lake?
1,943 ft. deep.
What are three types of volcanic material?
Gas, lava, and fragmented debris called tephra.
Are there any active volcanoes in the Cascades?
Yes, there are 20 major active volcanoes in the Cascades.
Are there any native fish in Crater Lake?
No, but fish were stocked in Crater Lake, until people stopped in 1941