All coordinates are in the WGS84 datum.
Click on the "Download GPX File" link in the upper right corner of each listing to download a .gpx file for the waypoint, for easy uploading to your GPS using the FREE program EasyGPS. Detailed information about the GPX file format can be found at TopoGrafix.com.
If you have a Garmin GPS, you can upload the waypoint to your GPS receiver directly from your web browser. Simply click the "Upload to Garmin GPS" link in the upper right corner of any waypoint listing you wish to save. You will need to install the Garmin Communicator browser plugin, if you haven't already.