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Yellowstone National Park A bull elk grasses on fall grass.
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Yellowstone National Park
Fish Identification - Brook Trout
Rainbow trout being held by a park stream.

Rainbow Trout (6 Photos)

Fish Identification - Rainbow Trout
An NPS employee holds a lake trout.

Lake Trout (5 Photos)

Lake Trout Identification
Brook trout held near a park stream

Brook Trout (12 Photos)

Close ups of brook trout for fish identification
Map showing distribution of brook trout in YNP.

Fish Distribution Maps (7 Photos)

Fish Distribution Maps
Brown trout being held by a park stream.

Brown Trout (7 Photos)

Fishing Identification - Brown Trout
01. Welcome poster with a bison in the background

Bison Posters (19 Photos)

Bison Public Meeting Posters
Hybrid trout being held near a park stream.

Hybrids (6 Photos)

Hybrid Fish
Close-up of Arctic grayling

Arctic grayling (13 Photos)

Photo Id of Arctic Grayling
Westslope Cutthroat Trout

Westslope Cutthroat Trout (15 Photos)

Fishing Identification for Westslope Cutthroat Trout
Trout being held near a park stream.

Yellowstone Cutthroat Trout (40 Photos)

Fish Identification Photos for Yellowstone Cutthroat Trout

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Lake Trout Illustration

Did You Know?
Lake trout are an invasive species of fish that is decimating the native cutthroat trout population in Yellowstone Lake.
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Last Updated: October 30, 2007 at 15:28 MST