Includes the Yellowstone and Lamar rivers and tributaries between the north park boundary and Chittenden Bridge near Canyon.
Permanently Closed to Fishing
Native Trout Conservation Area
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:
In areas downstream of these locations, killing of nonnative fish is recommended. If you don’t know, let it go.
Fish & Aquatic Species
Native fish underpin natural food webs and have great local economic significance.
Fisheries & Aquatic Sciences Program
Explore the National Park Service science program for fish and aquatic species.
Clean, Drain & Dry
Prevent damaging aquatic invasive species from reaching Yellowstone.
Last updated: March 11, 2020