Garmin eTrex Venture HC GPS Receiver (Discontinued by Manufacturer) High-Sensitivity, WAAS-Enabled GPS Receiver Provides Peak Performance In Any Environment Built-In Basemap Includes Lakes, Rivers, Cities, Interstates, National & State Highways, Railroads & Coastlines Features A 1.7-InchH X 1.3-InchW Screen With 256-Level Color Tft Usb Compatible For High-Speed Map Downloads 24 Mb Of Internal Memory Allows User To Load Waypoints & Routes From The Included Mapsource Trip & Waypoint Manager Software