Use this easy-to-read scale to quickly and accurately determine or plot longitude or latitude coordinate locations for use as waypoint data in GPS receivers or for accurately map plotting coordinates taken from GPS receivers. Features appropriate scales for use with the following maps: 1:24,000 scale, 7-1/2 minute topos; 1:62,500 scale, 15 minute topos; 1:100,000 scale, 30´ x 60´ topo (BLM); 1:250,000 scale, 1° and 2° Series; and 1:126,720 (1/2˝ =1 mile) scale U.S. Forest maps. Clear, heavy duty, 0.03˝ vinyl. Includes instructions. Scale is 3-1/2˝ x 9˝.