Altamont Corridor Express (ACE)
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Transportation
About Us
The Altamont Corridor Express (ACE®) is a commuter rail service in California, connecting Stockton and San Jose. The ACE service is named for the Altamont Pass, through which it runs. The 86-mile (138 km) route includes ten stops, with travel time about 2 hours and 12 minutes end-to-end.