California
Upper Kern River
Latest report: What's Biting on the Kern River? August 2026 Report — Kern River Fly Shop, 3 days ago
Solunar · next 7 days
About Upper Kern River
The Upper Kern drops 30 feet per mile through a deep granite canyon below the highest peaks in the Sierra, including Mount Whitney at 14,505 feet. That gradient makes it one of the steepest and most powerful rivers in California, and the fishing matches the setting — fast, physical, and rewarding if you're willing to scramble over boulders. Above Johnsondale Bridge, the river holds Kern River rainbow trout, a genetically distinct native subspecies that evolved in isolation behind impassable waterfalls. These fish run 6-14 inches and are protected by special regulations requiring barbless artificials and a 14-inch minimum size for retention.
The practical fishing season starts after snowmelt recedes, typically July in normal water years, and runs through November. Spring runoff regularly pushes the Kern above 2,000 CFS with Class V whitewater that is genuinely dangerous — do not attempt to fish or wade during runoff. Once flows settle to the 200-800 CFS range, the pocket water and plunge pools fish well with attractor dries, stonefly nymphs, and small caddis patterns. The stocked section below Johnsondale down to Kernville is more accessible and holds aggressive hatchery rainbows alongside some wild browns in the 10-18 inch range. October BWOs and brown trout activity extend the season into late fall.
The Forks of the Kern — where the Little Kern meets the main stem in the Golden Trout Wilderness — requires a multi-mile hike with all your gear, bear canisters included, but rewards the effort with solitude and the chance to catch federally threatened Little Kern golden trout in water few people ever see. Kernville is the nearest town, about 90 minutes from Bakersfield. Elevation ranges from 2,500 feet at Kernville to over 8,000 feet in the upper wilderness, so prepare for temperature swings. The Kern River Fly Shop in town is the definitive local resource.
Species
- Kern River Rainbow Trout (native)
- Rainbow Trout (planted)
- Brown Trout
- Little Kern Golden Trout
| Species | Abundance | Best Season | Size |
|---|---|---|---|
| Kern River Rainbow Trout (native) | Abundant (above Johnsondale) | Jun-Oct | 6-14" |
| Rainbow Trout (planted) | Abundant (below Johnsondale) | May-Oct | 8-14" |
| Brown Trout | Secondary | Sep-Nov | 10-18" |
| Little Kern Golden Trout | Rare | Jul-Sep | 6-12" |