Alameda County topographic maps

The San Leandro Hills run above the city to the northeast. In the lower elevations of the city, an upper regionally contained aquifer is located 50 to 100 feet (15 to 30 m) below the surface. At least one deeper aquifer exists approximately 250 feet (75 m) below the surface. Some salt water intrusion has taken…

Average elevation: 21 m

Average elevation: 113 m

Average elevation: 143 m

Average elevation: 27 m

Average elevation: 56 m

Average elevation: 4 m

Centerville was the main town in Washington Township. Centerville is located at 37°33′15″N 121°59′57″W / 37.55417°N 121.99917°W / 37.55417; -121.99917. It lies at an elevation of 52 feet (16 m). Centerville was started by George Lloyd who started selling cold beer to stage passengers from…

Average elevation: 93 m

Average elevation: 9 m

Average elevation: 202 m

Average elevation: 222 m

Average elevation: 184 m