Redwood Transit System (RTS) is the public bus system for Humboldt County, California. RTS offers service between Scotia, Fortuna, Loleta, Fields Landing, Eureka, Arcata, McKinleyville, Westhaven, and Trinidad Monday through 7 days per week. RTS offers service between Willow Creek and Arcata Monday through Saturday. RTS provides more than 400,000 passenger-trips per year. RTS is operated by Humboldt Transit Authority (HTA).