The Whatcom Transportation Authority (WTA) is the county's public transit agency and operates fixed bus service within Bellingham and its neighboring cities. The agency has several hubs, including the downtown station, the Western Washington University campus, and Cordata Station near Bellis Fair Mall, which is served by BoltBus intercity express buses to Seattle and Vancouver. Several corridors have frequent service that is branded as "GO Lines", with service every 15 minutes. WTA also offers intercity service to Mount Vernon, connecting with Skagit Transit for onward service to Everett.