Bighorn Lake

Overview

Bighorn Lake is a dramatic canyon reservoir formed by Yellowtail Dam, cutting through steep rock walls along the Wyoming–Montana border. It’s one of the most visually striking waters in the region and offers a big-water fishing experience that feels remote and expansive.

Fishing Overview

Bighorn Lake offers a diverse fishery that includes trout, walleye, bass, and other species depending on location and season. Fishing conditions can vary dramatically along the length of the reservoir, from river-like upper sections to deeper, more open water near the dam. Trolling and structure-oriented approaches are common, and anglers benefit from committing to specific zones.

Access and Amenities

Bighorn Lake has established access points, marinas, and launch areas, though distances between services can be significant. Boat anglers benefit most from the lake, but shoreline access exists in select areas. Because of the canyon setting, weather and water conditions should be monitored closely.

Fees: Day-use or parking fees may apply at some federally managed access areas.

Regulations and Notes

Bighorn Lake regulations can vary by species and may differ between Wyoming and Montana waters. Anglers should confirm current regulations for the specific section they plan to fish.