The Altamont Corridor Express is a commuter rail service in California, connecting Stockton and San Jose during peak hours only. ACE is named for the Altamont Pass, through which it runs. Service is managed by the San Joaquin Regional Rail... Wikipedia
Began operation: October 19, 1998
Areas served: San Joaquin Valley, Tri-Valley, and Silicon Valley
Customer service: 1 (209) 649-4676
Headquarters: Stockton, CA