Includes the Snake and Lewis rivers and tributaries; Heart Lake; Lewis and Shoshone lakes; Falls and Bechler rivers and tributaries.
Heart Lake opens July 1.
Native Trout Conservation Area
Nonnative Trout Tolerance Area
Native Fish 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.
Last updated: April 14, 2022