Old-timers in Red Bluff tell of hidden passages beneath the downtown, including one said to run from the Masonic building toward the Sacramento River. The town has documented tunnel folklore tied to its historic riverfront Chinatown, of passages used for cover, storage, and moving goods out of sight. No public map confirms a layout; this is town lore, not a surveyed tunnel.
Downtown Red Bluff, near the Sacramento River (Tehama County)
See it on the map