Weekend Explorer provides an affordable, fully featured solution for planning outdoor excursions using seamless 1:24,000 scale (7.5' series) USGS topographic maps. A perfect compliment to regional guide books, and ideal for recreational enthusiasts who do most of their activities within a short drive from home. Like our best-selling State Series products, Weekend Explorer is compatible with most hand-held GPS receivers manufactured by Garmin, Magellan, Eagle and Lowrance, and select Suunto wrist-top computers and enables the transfer of routes, waypoints and tracks using a computer connection cable (not included). Magellan Triton users can transfer maps directly from Weekend Explorer to any of the six available models. Additional Details: Covers all of the San Antonio and Austin metro areas including: Kerrville, Fredericksburg, San Marcos, Uvalde, Buescher State Park, Pedernales Falls State Park, Enchanted Rock State Natural Area, Guadalupe River State Park, Balcones Canyonlands N.W.R., Hill Country State Natural Area, South Lllano River State Park, Lost Maples State Natural Area, and more. Includes over 300 USGS 7.5' topographic maps. View a detailed coverage map by clicking the magnifying glass next to the product image on this webpage. System Requirements: Windows 95, 98, NT, 2000, XP, or Vista. 64MB RAM + 8MB of Video Memory with CD Drive. or Macintosh OS 10.2 or higher with 350mhz G3 or better,CD Drive, 128MB RAM and 16MB of Video Memory.