This MinnesotaMap Series CD ROM includes ALL of the above lakes in the drop down box which also includes *Mille Lacs, Leech, Vermilion, White Bear lake and Winnibigoshish* Click to order or for more info.
This Single CD ROM is Broken out by Area for you below Includes the following Alexandria Area MinnesotaMap Series Lakes:
Alexander, Big Watab, Carlos, Clearwater, Fishtrap, Le Homme Dieu, Miltona, Osakis, and Sugar. AND
The following Brainerd MinnesotaMap Series Area Lakes:
Alexander, Arrowhead, Bertha, Big Trout, Clamshell, Cross, Daggett, Edward, Hubert, Fishtrap, Island, Loon, Little Pine, Lower Hay, North Long, North Round, Pelican, Pig, Rush-Hen, Lower, Whitefish, and Upper Whitefish, Mille Lacs AND
The following Metro MinnesotaMap Series Area Lakes:
Bald Eagle, Big Marine, Clearwater, Forest, Sugar, Waconia, and Mississippi River Pools 4 & 8. AND
Upgrade from your current version - Click to order or for more info.
You must purchase one of the MinnesotaMap Series, BigLake, or MinnesotaMaster CD-ROM packages or be a current owner of one before you can use the upgrades deals. If you are a current MinnesotaMap Series, BigLake, or MinnesotaMaster CD-ROM owner we will e-mail you for your MinnesotaMaster registration number.
Unlike other maps on the market, MinnesotaMaps Series lake maps are surveyed with boats. The data collected is placed into real world geometry by GIS professionals. What does this mean? Consider a run-of-the-mill paper map found in any sporting goods store. There are many differences between those maps and a true surveyed map.
First, it is easy to notice accuracy problems or a lack of data. This is due to the survey upon which it is based. All maps other than Promaps and BigLake are based upon DNR data, some of which was collected in the 1960's. The lakes haven't changed much in 40 years but the methods of data collection certainly have. These surveys were done prior to GPS and in most cases without SONAR. Surveys done today make use of D-GPS and survey grade SONAR. The two methods lead to very different results, on a lake where the DNR may have had 2000 data points we have 5 to 35 million.
Secondly, the GPS coordinates are rarely accurate. This problem is a result of the GPS grid placed on maps. A GPS grid is meant for a round globe, when you flatten it out and place it on a paper map you create a series of problems that if go uncorrected create a lousy map. Imagine a paper map placed on a round globe. The only accurate GPS coordinate would be the middle of the map were it touches the globe. As you go towards the outside of the map, closer to shore, your GPS coordinates become less accurate. Our paper maps are rectified to fit the curvature of the earth thereby creating accurate GPS coordinates throughout. All MinnesotaMap Series CD-ROM Maps come with 255 Minnesota MinnesotaMaster & MinnesotaMap Series CD-ROM Maps. Click Here to see all the lakes included.