Interstates
I-5-- Yreka-Redding-Red Bluff-Sacramento

U.S Routes
U.S. 101-- Crescent City-Eureka-Ukiah-San Francisco
U.S. 199-- Gasquet-Crescent City

State Routes
State Highway 1-- Leggett-Fort Bragg-Gualala-San Francisco
State Highway 3 --Hayfork-Douglas City-Yreka
State Highway 20--Noyo-Clear Lake-Williams
State Highway 29--Lakeport-Lower Lake-Calistoga
State Highway 36-- Fortuna-Bridgeville-Red Bluff-Susanville
State Highway 96-- Willow Creek-Orleans-Happy Camp-Yreka
State Highway 128-- Albion-Booneville-Cloverdale-Napa
State Highway 162-- Longvale-Covelo-Willows
State Highway 169--Weitchpec Area
State Highway 175--Hopland-Middletown
State Highway 197--Crescent City Area
State Highway 211--Fernbridge-Ferndale
State Highway 253--Pt. Arena-Booneville-Ukiah
State Highway 254--Avenue of the Giants
State Highway 255--Eureka-Samoa-Arcata
State Highway 281--Lakeport-Lower Lake
State Highway 299--Arcata-Willow Creek-Weaverville-Redding-Alturas