Here's a map of where the Laker tags are. It's a geocaching game put on by the MnGCA (Minnesota Geocacher's Association). Data is retrieved from their server, plotted against the Geocaching.com locations, and then entered into a Google Map. You can also plot your own maps from LOC and GPX files.

If you like to use Google Earth, you can get the laker map as a networked kml or a static kml. The networked file is always up to date, but requires an internet connection (just like Google Earth). The static one is a snapshot of the information as of when you download it.