Wilderness Navigation Guide

Major latitudes and longitudes are shown as lines across the map or as tick marks in the margins. On most maps or charts, only selected lati...

What is Geographic Coordinate Symbol?  After knowing the basic information about the maps, scales, legends, symbols, and also how to meas...

Use a Ruler, or Curvimeter, or Even Google Maps Distance Calculator. If you want to calculate the real world distance of a route, you need...

Three Types of Map Scale. All maps or charts are drawn to a specific scale. The scale is the relationship between a distance on the map v...

Never Use a Map Without Knowing Its Symbol and Color's Meaning. The map legend shows the meaning of the colors and symbols on your ma...