Hat Creek

Hat Creek flows approximately 60 miles from its headwaters in Lassen Volcanic National Park to its confluence with the Pit River. The creek transitions through multiple distinct environments: the upper freestone section above Lake Britton, the legendary Wild Trout Section between Cassel and Lake Britton, and the lower section from Lake Britton to Baum Lake. For fly anglers, the Wild Trout Section is the crown jewel and one of the finest spring creek fisheries in the western United States.

The Wild Trout Section is a 3.5-mile stretch of slow, clear water that meanders through open meadows with scattered willows and sedges. Massive springs contribute cold, mineral-rich water that creates ideal conditions for aquatic vegetation and insect production. The result is a population of trout that averages 14-16 inches with fish over 20 inches present, feeding on prolific mayfly, caddis, and midge hatches in water that is often less than three feet deep and crystal clear.

The technical challenge of Hat Creek's Wild Trout Section is legendary. Trout cruise the channels between weed beds, sipping insects with the kind of selectivity that makes this water a proving ground for skilled fly fishers. Drag-free drifts are mandatory. Leader-shy fish demand long, fine tippets. The flat, clear water means trout can see anglers from a distance, making stealth essential. Many experienced anglers consider Hat Creek one of the most humbling and rewarding spring creeks they have ever fished.

Beyond the Wild Trout Section, upper Hat Creek above Lake Britton offers a more forgiving freestone experience with smaller but willing trout in pocket water and riffles. The contrast between the technical spring creek and the accessible freestone section makes Hat Creek a destination that can challenge experts while still offering opportunities for developing anglers.

Hat Creek's Wild Trout Section is fed by cold, mineral-rich springs that maintain stable temperatures year-round, typically in the 50-58 degree range. Water clarity is exceptional, often exceeding 15-20 feet of visibility. The spring water supports dense beds of aquatic vegetation, including various species of pondweed and watercress, which in turn support prolific insect populations.

The insect community is one of the richest in California. Hexagenia mayflies (the famous "Hex" hatch) are the signature insect, emerging in late June and July. Pale Morning Duns hatch throughout summer, Tricos provide late-summer and fall fishing, and Blue-Winged Olives are reliable in spring and fall. Midges are present year-round. Caddisflies and damselflies add to the diversity.

The substrate beneath the aquatic vegetation is predominantly silt and fine gravel. The creek's gradient is minimal, creating the slow, smooth flows characteristic of spring creeks. Water quality is excellent, supporting a self-sustaining population of wild brown and rainbow trout.