San Pablo Bay NWR.
The refuge began the restoration of 72 acres (29 ha) of low-yield
hayfields to tidal salt marsh last March by breaching a bayfront levee.
The goal is to bring back native pickleweed-dominated vegetation, which
is habitat for the salt marsh harvest mouse (Reithrodontomys
raviventris) and California clapper rail (Rallus longirostris
obsoletus), two endangered species in the greater San Francisco Bay estuary. The restoration site included lands managed by the refuge under
long-term lease from State of California Lands Commission. This site is
situated immediately east of and adjacent to the Tolay Creek Unit of the
refuge, a 435-acre (177-ha) site restored to tidal action in December
1998 for the same purposes.