The eTrex Vista combines a basemap of North and South America, with a barometric altimeter and electronic compass. The compass provides bearing information while you're standing still and the altimeter determines your precise altitude. The Vista is also designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System (WAAS). This product will provide position accuracy to less than three meters when receiving WAAS corrections.
The eTrex Vista also boasts an internal memory capacity of 24 megabytes, which allows it to accept downloaded mapping data from Garmin's MapSource®® CD-ROMs, including Fishing Hot Spots