Butte County
(Chico)
Colusa County
Del Norte County
(Crescent City)
Humboldt County
(Eureka, Arcata)
Glenn County
Lake County
(Clearlake)
Lassen County
(Susanville)
Mendocino County
(Ukiah, Fort Bragg, Willits)
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Modoc County
Plumas County
Siskiyou County
Shasta County
(Redding)
Sutter and Yuba Counties
(Yuba City, Marysville)
Tehama County
(Red Bluff)
Trinity County
Interregional Transportation
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