Yellowstone Park, August 28th, 2021

Mountain Ash Creek

The park lifted its hoot owl closures on all streams, but these waters offer sub par fishing even though water temperatures have cooled (except for in the Firehole River). Low flows mean reduced cover that concentrates fish in deeper water and causing stress. Best fishing in the park is found in higher altitude lakes such as Grebe and Cascade Lakes. Beula and Hering Lakes in Fall River Basin and Riddle Lake also offer good fishing. As summer winds down crowding such as is present on northeast corner streams ( Lamar River, Slough and Soda Butte Creeks) will diminish. Migrating browns and rainbows are beginning to migrate out of Hebgen Lake into the Madison River.