Navarro River

The Navarro is the largest river on the Mendocino coast and the one the rest of the coast takes its orders from. It drains about 315 square miles of Anderson Valley oak hills and redwood canyon with no dam and no snow, and its winter steelhead are all wild, mostly 4 to 8 pounds with a few in the low teens. There is no hatchery, so the two-fish bag limit for clipped fish never applies and every steelhead goes back. The legal water is the main stem below the Greenwood Road bridge near Philo, and most of the fishing happens in the last 11 miles, where Highway 128 and Navarro River Redwoods State Park follow the river down to the beach.

This is a timing river. A big storm pushes the USGS gauge near Navarro to 4,000 to 10,000 CFS, and it falls off almost as fast as it rose. After the January 6, 2026 peak of 7,730 CFS, it was at 1,210 four days later and 590 four days after that. The water to wait for is about 700 down to 250 CFS, when the color turns from chocolate to green and the runs get wadeable. Swing a sink-tip and a bright fly through the tailouts in the upper half of that range, then go to an egg and a stonefly nymph under an indicator as it clears and drops. A dry spell gives you roughly 10 to 14 days before it slides under 200 CFS, and when it does, CDFW closes the Navarro and every other Mendocino coast stream with it, the Noyo included.

Road access is better than on most coast rivers, which also means company. Expect parked cars at every good Highway 128 pullout on a weekend after a storm, and go midweek if you can. Above the state park the banks are private timber and vineyard land, so the upper river is boat water or nothing. Coho here are endangered and Chinook are threatened, and both turn up in December and January, so keep every fish in the water and step around the redds on the tailouts in February and March. Check the CDFW low-flow page before you make the drive from the Bay Area.