Wednesday, November 23, 2011

Garmin US TOPO MicroSD Data Card for Garmin GPS Units Review

Garmin US TOPO MicroSD Data Card for Garmin GPS Units
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I ordered this map, assuming it was based on 24k USGS maps. When it arrived, I noticed that in the lower corner of the package it said 100k. This means than one inch of the map is equal to 100,000 inches (1.57 miles). This compares to one inch of the 24k map being 0.37 miles. When you consider that the map is in 2 dimensions, this means that the 100k map has about 1/16th as much detail as the 24k map. When you are using a map for hiking, small scale is very important.
The 24k map is available on Amazon.com at the time of this review (12/2009) and is only about $10 more.
Garmin Topo U.S. 24k Mountain North - Idaho-Montana-Wyoming

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GARMIN 010-C0906-00 MapSource Topo 2008 Western Great Lakes MicroSD Card. Now you can get all the detail of Garmin MapSource United States Topo 2008 without messy unlock codes and time-consuming downloads. Garmin has created Pre-Programmed MicroSD cards that contain the same MapSource Topo data you know and love broken down by region. Saves you time and money. Plan your next outdoor adventure with the help of MapSource United States Topo. This card contains detailed topographical coverage of the U.S. shores of the Great Lakes from Cleveland OH to Duluth MN. Also includes coverage throughout Minnesota Wisconsin Michigan Iowa Indiana and Ohio as well as Illinois north of East Saint Louis and Kentucky north of Interstate 64.

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