To provide you with additional information about how we collect and use your personal data, we’ve recently updated our Privacy Policy and Terms of Service. Please review these pages now, as they apply to your continued use of our website.
A bike trail parallels the concrete channelized San Gabriel River that begins in the San Gabriel Mountains, flows through the L.A. area and empties into the Pacific Ocean. The river was channelized by the U.S. Army Corps of Engineers to prevent floods.