Crater Lake National Park Redfox Research Project

A fox in tall grass
The National Park Foundation funded Crater Lake National Park's red fox research, which examined red fox distribution and reaction to visitor activity.

Crater Lake National Park, situated in Southern Oregon on the crest of the Cascade Mountain range, is well-known for being home to the deepest lake in the United States and the seventh deepest in the world. The 1,943 foot deep lake lies inside a caldera, or volcanic basin, and was created when the 12,000 foot high Mount Mazama collapsed 7,700 year ago following a large eruption. Because the lake is filled almost entirely by snowfall, it is one of the clearest lakes in the world.

Crater Lake National Park is comprised of 183,224 acres of mountains, peaks, evergreen forests, and lake. The ranging elevations throughout the park provide diverse habitats for an array of wildlife and make for an outstanding outdoor laboratory and classroom.

This project provided critical information on the ecology of the Sierra Nevada red fox, one of the rarest mammals in North America. The park's initial goals included determining the distribution of red fox at Crater Lake National Park as well as the effect of visitor activities on the species.

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