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Green Lake (4,261' elevation) in North Cascades National Park.  This sub-alpine lake is 80 acres, 153 feet deep, and contains a reproducing population of non-native cutthroat trout.

Ecological Research Papers

The following report contains the results of more than a decade of research into the ecological effects of introduced trout. This research provided the scientific basis for development of the Mountain Lakes Fishery Management Plan.

Ecological Impact of Introduced Trout on Native Aquatic Communities in Mountain Lakes, North Cascades National Park Service Complex: Phase III Final Report (July 2002)
 
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