This ruler set was designed to be used with the DeLorme® Atlas & Gazetteer series.
They contains multiple ruler pairs for measuring latitude longitude coordinates for latitudes covered by each atlas in one degree increments.
They also contains rulers for measuring statute miles and kilometers.
The pages of the atlas have a printed lat/lon grid shown with thin black lines.
The lines are marked with their values just outside of the edges of the map, in a degrees, minutes and seconds format and in decimal degrees.
Longitude rulers used north of their design parallel of latitude, will be too long to fit the grid.
The ruler should be "close enough" up to about 1° north of the design latitude.
As you move north, you may find the next ruler in the set is a closer fit.
You can also use the ruler on a slight diagonal between the grid lines to compensate for the extra length.
These rulers are somewhat different than our regular plastic rulers...
They are printed on Rite-In-The-Rain™ cardstock instead of plastic.
They are 1.5 inches wide and 8.5 inches long.
We make these rulers using our custom ruler printing process. If you have need of a map ruler that not in one of our sets,
check out the custom map ruler design page.
For more information on using lat/lon coordinates and for specific instruction on using the MapTools rulers to
measure lat/lon, visit the Lat/Lon Tutorial Pages.