National Geographic Maps trails illustrated

　　the complete trail smart maps national parks of the USA

　　includes 5 CD ROMs

　　works with GPS

　　Explore all 60 parks

　　system requirements:

　　microsoft windows 95, 98, and NT

　　16 megabyte memory

　　double speed cd-rom drive

　　supported GPS receivers:

　　works with most popular handheld receivers manufactured by garmin, Eagle, Lowrance, and Magellan .

　　DirectLink requires input output capability and a PC cable - not included