Eel River

The Eel River drains 3,700 square miles of the Coast Range across four counties, making it the third-largest watershed in California. It was once one of the most productive steelhead and salmon rivers on the West Coast, and while dam construction and watershed degradation reduced those runs dramatically, the Eel still draws fly anglers for two distinct seasons: winter steelhead from December through March, and half-pounder steelhead from late summer into fall. The half-pounders -- immature steelhead in the 12-18 inch range that return early from the ocean -- are aggressive, acrobatic, and one of the few fish in Northern California you can reliably target on a swung fly in warm weather.

This is a rain-driven freestone system with no significant tailwater, which means flows are dictated entirely by storms. Winter steelhead fishing is a game of timing: you watch the weather, wait for flows to drop into the 800-2,000 CFS range on the mainstem after a rain event, and hit the river as it clears. When the window opens, anglers swing flies through deep runs on the mainstem and South Fork for wild steelhead averaging 4-12 pounds. Above 8,000 CFS, the river is blown out and unfishable. Summer is a different world -- low, clear water on the South Fork through Humboldt Redwoods State Park supports resident rainbows in the 8-14 inch range, and it's some of the prettiest water in the state.

The South Fork is the most accessible section for visiting anglers, with old-growth redwoods lining the banks and campgrounds at Humboldt Redwoods State Park. The Middle Fork is a designated Wild and Scenic River with over 80 miles of protected water and one of California's most remote pristine watersheds -- plan for a backcountry trip if you want to fish it. All wild steelhead must be released, barbless hooks are required during steelhead season, and regulations vary significantly by section and species. Garberville is the nearest town, about 3.5 hours from San Francisco. Poison oak is everywhere, and the river blows out fast with rain and drops fast -- check CDFW for emergency closures before you drive up.