Fish in Yellowstone's Northeast

Overview of Yellowstone, highlighting northeast region

Includes the Yellowstone and Lamar rivers and tributaries between the north park boundary and Chittenden Bridge near Canyon.

  • Blacktail Pond area is closed to public use and travel, including angling, until July 1 to protect nesting birds and sensitive vegetation.
  • Only a State of Montana fishing license is required to fish the Yellowstone River, downstream of Gardiner, Montana.

Permanently Closed to Fishing

  • Trout Lake inlet stream is permanently closed to fishing to protect spawning cutthroat trout.
  • Yellowstone River, from Chittenden Bridge near Canyon downstream through the Grand Canyon of the Yellowstone to a point directly below Silver Cord Cascade, is permanently closed to fishing to ensure angler safety.

Possession Limits

Native Trout Conservation Area

  • Catch and release all native fish.
  • No possession limit on nonnative fish.

In the Yellowstone and Lamar rivers and tributaries in the Northeast Region of the park, rainbow trout and cutthroat x rainbow trout hybrids have white tips on the anal and paired pelvic fins and must be killed. All nonnative fish, including rainbow trout, brook trout, and identifiable cutthroat/rainbow hybrids must be killed in these areas:

  • Lamar River drainage including all tributaries and lakes.
  • Yellowstone River below Lower Falls and above Knowles Falls, including north side tributaries.

In areas downstream of these locations, killing of nonnative fish is recommended. If you don’t know, let it go.

Map of the areas where fishing is allowed in the northeast part of the park.
Angler fishing in Yellowstone during a golden morning.


Be a responsible angler and understand the regulations before you come.

An angler standing in the water and fly-fishing during a misty day.

Fishing Regulations (PDF)

Download the Yellowstone Fishing Regulations booklet.

An underwater view of a spotted fish with a red slash on its neck and side swims above pebbles

Fish & Aquatic Species

Native fish underpin natural food webs and have great local economic significance.

Young cutthroat trout in a shallow creek

Fisheries & Aquatic Sciences Program

Explore the National Park Service science program for fish and aquatic species.

Zebra mussel infestation

Clean, Drain & Dry

Prevent damaging aquatic invasive species from reaching Yellowstone.

Last updated: March 11, 2020

Contact the Park

Mailing Address:

PO Box 168
Yellowstone National Park, WY 82190-0168



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