Coverage is from Napa to Monterey.
These digital topo map files are available for FREE download in GeoTIFF format, with their associated world reference files. These images drape Landsat TM satellite imagery over Digital Elevation Models to show the bay as it has never been seen before. Earthquake fault lines are displayed in red. All the images can be downloaded quickly for printing from your home computer on US Letter paper. Full size 6ft images can be downloaded or ordered from this site, or you can take a file to any good copy service bureau that offers a poster printing service.