California (South) Topographic Map-pack All digitally published 1:24,000, 1:100,000, and 1:250,000 USGS Topographic maps of Southern California between 32N and 36N. Maps have been compressed, mosaiced, and indexed for immediate hassle free use with Overland Navigator Automated windows installer makes installation, configuration, or removal a snap Field friendly: Installs to hard drive so you don't need an internet connection. **Requires Overland Navigator Software (purchased separately)