Browsing by Author "Hopf, Frank"
Now showing items 1-1 of 1
-
Hopf, Frank (2012-02-14)Between 1850 and 1922, agriculturalists built 1,700 kilometers of levees to convert 250,000 hectares of tidal marsh to farmland where the San Joaquin and Sacramento Rivers enter the San Francisco Bay (the Delta). Drained, ...