![]() ![]() Classifies cultural features, such as populated areas, main roads, and boundaries, on older mapsĪ: True (north pole), magnetic (compass), and grid (map)ĩ) What is the rule of thumb for reading maps?ġ0) How many grid zones is the world divided into?ġ1) How close will an eight digit grid get you?ġ2) How close will a six digit grid get you?ġ3) How close will a ten digit grid get you?Ī: An azimuth is defined as a horizontal angle measured clockwise from a north base line the azimuth is the most common military method to express directionĪ: A back azimuth is the opposite direction of an azimuth. You can use latitude and longitude lines on a map to figure out where you are, but it’s a little unwieldy because as you move north or south, the distance between longitude lines shortens. Based on data from DOE, physical attacks on the. Traditionally, maps have used latitude and longitude lines as the reference system. As if cyber-attacks were not enough of a security concern, physical attacks by domestic terrorist on the U.S. Identifies all relief features and elevation, such as contours on older edition maps, and cultivated land on red-light readable mapsĦ. Enter the Military Grid Reference System, or MGRS for short. Identifies vegetation with military significance, such as woods, orchards, and vineyardsĥ. Identifies hydrography or water features such as lakes, swamps, rivers, and drainageĤ. The colors red and brown are combined to identify cultural features, all relief features, nonsurveyed spot elevations, and elevation, such as contour lines on red-light readable mapsģ. Indicates cultural (man-made) features such as buildings and roads, surveyed spot elevations, and all labels.Ģ. A: a graphic representation of a portion of the earth’s surface drawn to scale, as seen from aboveģ) Who is responsible for securing maps for the unit?ĥ) Where will you find the Declination Diagram of a Map and what does it represent?Ī: This is located in the lower margin of large-scale maps and indicates the angular relationships of true north, grid north, and magnetic northĦ) What are the Colors of a Military Map and What do they Represent?Ī: 1. MGRS is derived from a UTM grid system and is an alternative way of representing UTM coordinates 2. ![]()
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