Pit River

The Pit River flows approximately 207 miles from its headwaters in Modoc County to its confluence with the Sacramento River arm of Shasta Lake. For fly anglers, the productive water is concentrated in the reaches between PG&E powerhouses (numbered Pit 1 through Pit 7), where tailwater releases create cold, nutrient-rich conditions. The most popular and accessible fly fishing sections are Pit 3, Pit 4, and Pit 5, each offering distinct character and excellent trout habitat.

The river flows through a dramatic volcanic canyon of dark basalt rock, creating a landscape unlike any other California trout stream. The canyon walls are steep and craggy, the river bottom is composed of dark, slick boulders, and the water has a distinctive greenish tint. The powerhouses regulate flows based on electricity generation demands, creating tailwater-like conditions with temperature stability and periodic flow fluctuations.

What makes the Pit River special is the average size of its trout. Fish in the 14-18 inch range are common, and browns and rainbows exceeding 20 inches are caught with regularity. The cold water, abundant insect life, and relatively light fishing pressure combine to create conditions that grow large trout. The wild rainbow trout are particularly beautiful, with deep bodies and brilliant coloring.

Access to the Pit is more challenging than roadside rivers. Most sections require hikes of varying difficulty to reach the water, and the slick basalt bottom demands careful wading. These access challenges naturally limit pressure and contribute to the quality of the fishing.

The Pit River below the powerhouses has hybrid tailwater-freestone characteristics. The powerhouse releases provide temperature-moderated water similar to a tailwater, with temperatures typically in the 48-58 degree range year-round. However, the river lacks the gin-clear water of classic tailwaters, instead showing a greenish tint with 3-6 feet of visibility, which works in the angler's favor by making fish less leader-shy.

The substrate is unique: dark volcanic basalt boulders and bedrock create a visually striking and physically challenging environment. The insect community is dominated by caddisflies, with golden stoneflies, Blue-Winged Olives, and midges contributing. Sculpin and other forage fish are abundant, supporting the growth of large predatory trout.

The river's flows fluctuate based on powerhouse operations, but the cold temperatures remain stable, creating excellent trout habitat year-round. The combination of cold water, abundant food, and light pressure produces trout with above-average size.