San Francisco Bay Area Regional Database (BARD)

The DRGs available on BARD were produced by Teale Data Center in a cooperative effort with the
US Geological Survey. They have been compressed using free software packagegzip.
The projection of the DRGS is Albers Projection NAD27. This differs from the rest of the BARD data which is in UTM. Each file has an associated world file (.tfw) that georeferences the image. When you download the .tif data file also download the .tfw world file in order to georeference the image during display. The DRG files vary in size from 1.5 Megabytes to as large as 20 Megabytes.

LODI DRGs : Index Map

Rio-Vista DRG is not available due to data corruption. The DRG will not be replaced.




Allendale , [world file] Antioch North , [world file] Birds Landing , [world file] Bouldin Island , [world file] Bruceville , [world file] Carbondale , [world file] Clay , [world file] Clements , [world file] Clarksburg , [world file] Courtland , [world file] Denverton , [world file] Dixon , [world file] Dozier , [world file] Elk Grove , [world file] Elmira , [world file] Florin , [world file]

Galt , [world file] Goose Creek , [world file] Honker Bay , [world file] Isleton , [world file] Jersey Island , [world file] Liberty Island , [world file] Linden , [world file] Lockeford , [world file] Lodi South , [world file] Lodi North , [world file] Saxon , [world file] Sloughouse, [world file] Terminous , [world file] Thornton , [world file] Waterloo , [world file]