There is no POI data on the disks for Alaska although there is map data for all but the Dalton highway. You can't enter an Alaskan address because they are not there. What you have to do is locate your destination on another map source such as DeLorme's Street Atlas, scroll the STS NAV map and manually set the point. It says the nearest police and hospital are across the border in Canada. When I first got my STS there wasn't even map data for Alaska on the disk so you couldn't even follow along on the map. The NAV screen was just blank. I wrote letters and complained until the map data was included on an update disk but so far no POI info. All this is no surprise after having been treated like a second class citizen for 73 years. I've been asked to show a passport after flying commercially from Fairbanks to Seattle. I've been told that Alaska money is no good in the lower 48. I've been told that Alaska is not part of the continental US even though Alaska and the lower 48 are both in North America. I did rent an SRX and it had Alaska POI data on the NAV map so it must just be an STS thing. I'd be happier about the STS NAV if I could use it to find a place anywhere in the state.