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Yellowstone National Park
Fish Identification Tools - Fish Images and Distribution Maps
A lake trout amongst rocks

A lake trout amongst some rocks

Native Fish Species
 Nonnative Fish Species
 Hybrids
 
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
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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Did You Know?
Prior to the establishment of the National Park Service, the U.S. Army protected Yellowstone between 1886 and 1918. Fort Yellowstone was established at Mammoth Hot Springs for that purpose.
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Last Updated: August 16, 2010 at 11:16 MST