Panoramic view of Crater Lake. Geologists believe
that the mountain used to be much taller, about 14,000 feet high (like Mt.
Shasta). There was a massive eruption about 7,000 years ago, and when
the chamber underneath the volcano emptied out, the top of the mountain
collapsed into itself. The resulting six-mile-wide caldera filled with
water, and over time, smaller eruptions built up the island volcano, Wizard
Island, that you see on the left of the lake.
This page was last updated Sunday October 08, 2006