* Scales for measuring Lat/Long and UTM for the most common USGS Alaskan map on the scale of 1:63.36K
* Both Lat/Long and UTM scales for the most common Canadian scale of 1:50K.
* Convenient size so that it will fit in your pocket.
* Comes with a complete set of easy to understand instructions by example. Includes samples of both sizes of maps with examples of how to read and plot Lat/Long and UTM coordinates.