Named after the county’s first U.S. settler, John Marsh, Marsh Creek is the second longest, least disturbed waterway in the area. Once it had steelhead and sustained mammoth oaks, as described here by 19th century explorer William Brewer.
Music: “Waubonsie” by Phil Heywood. Topics: rock wren, Marsh Creek geography, hydrology, and conservation; John Marsh; Marsh Creek State Park. Speaker: Seth Adams, Carl Magruder (as William Brewer). Sound: rock wren. Photos: Marsh Creek upper section, Bob Walker, Oakland Museum collection; Marsh Creek floodwaters, © George Phillips; Marsh Creek Reservoir, © Seth Adams; steelhead drawing, U.S. Printing Office; lower Marsh Creek, courtesy Friends of Marsh Creek Watershed; salmon drawing, U.S. Printing Office; John Marsh, Contra Costa Historical Society; William Brewer (2), Yale University Press; Marsh Creek State Park aerial, © Stephen Joseph; Marsh home, Contra Costa Historical Society