Problem matching DEM Map to Paper Map

[davehueglin]

Still working on this. The problem seems to be the longitude. The longitude of the bottom left corner of the map I am using (031C_0100_DEME) is 77 degrees West which according to the instructions should equate to 77x3600 or -277200, but the figure you get from the Map Production Information dialogue box is 77200.

I can't figure out how the program is generating the 77200. Simply going (degrees x 3600 - 200,000) does not give an accurate conversion for, say 76 degrees.

I did find a neat on line program that will automatically convert long and lat into UTM.