Streams and Fisheries

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Boundary of Crater Lake National Park and the streams originating therein
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  • Approximately 200 km of perennial streams and 115 km of intermittent streams drain outward from Mt Mazama
  • All “wadeable streams” (peak flow < 200cfs, active channel width ≤ 10m)
  • Most reaches contain high gradient, cold, headwater habitats
  • Amphibians were dominant aquatic vertebrate in most streams prior to introduction of non-native fish
 

Stream Ecology and More

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    Last updated: September 25, 2022

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    Mailing Address:

    Crater Lake National Park
    PO Box 7

    Crater Lake, OR 97604

    Phone:

    541 594-3000

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