One of only four volcanoes with a historically recorded eruption of VEI magnitude 7.

An eruption which removed the summit of the former Mt. Mazama approximately in 4895 BC.

A subsequent eruption at about 4750 BC built Wizard Island within the summit crater.

The Lake is the deepest in North America at 1,932 feet.

The stamp illustrated below was part of the National Parks series issued in 1934.

For more information on the volcano, go to Volcano World

Below, mint imperf pair of same stamp

The next, courtesy of Jeff Switt, are covers with caches of the volcano.

The following was issued in 2006


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