Middle Napa River


The Middle Napa River watershed extends from just north of St. Helena to just south of the town of Yountville and includes the watershed drained by Conn Creek. Tributary creeks of the Middle Napa area include: York, Sulphur, Bear Canyon/ Bale Slough, Conn, Chiles, Moore, Sage, Rector, Chase, and upper Hopper Creeks.