The story
In 1974, the City Council of Arcata chose to use its allotment of SB 325 money for a public mass transit system. In April 1975, the new bus service within Arcata city limits was inaugurated and named the Arcata & Mad River Transit System.
In 2023, the City of Arcata expanded its contract with Humboldt Transit Authority to include all operation and maintenance services. In July 2025, the City Council of Arcata approved an agreement to fully transfer the Arcata and Mad River Transit System to the Humboldt Transit Authority, and in July 2025 the transfer was complete.
On August 21, 2023, the Green and Gold route was opened to ridership to provide evening bus service. The route ceased operations in August 2026 following reduced funding from California State Polytechnic University.
From Wikipedia’s article on Arcata and Mad River Transit System, shared under CC BY-SA 4.0.4