Garmin GPSMAP 76 w/Garmin MAPSOURCE US Roads and Rec. CD-Rom, in like new condition $225 + shipping Unit makes a good addition to your observing equipment if you don't have a telescope with built in GPS.
Has a detailed basemap with cities, highways, interstates, exit info, rivers, lakes. Accepts up to 8 megabytes of downloaded map detail from a variety of optional MapSource CDs. Roads and Rec MAPSOURCE CD-Rom included adds downloadable maps with surface street and road details and recreation locations.
Receiver: WAAS-enabled, 12 parallel channel GPS receiver
Power Source: Two "AA" batteries
Battery Life: Up to 16 hours
Physical Size: 2.7"W x 6.2"H x 1.2"D (6.9 x 15.7 x 3.0 cm) Weight: 7.7 ounces
Case: Fully gasketed, high-impact plastic alloy, waterproof to IEC 529 IPX7 standards picture of the receiver is below.