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# Land Nav Task 7 - Determine a Location on the Ground by Terrain Association

Standards: Determined the six-digit coordinate of your location with a 100-meter tolerance within seven minutes.

Conditions: In the field during daylight, while at an unknown location on the ground, given a standard 1:50,000-scale military map of the area, pencil, paper, a coordinate scale, protractor, and a known point on the ground.

Standards: Determined the six-digit coordinate of your location with a 100-meter tolerance within seven minutes.

 Performance Steps 1.   Determine the type of terrain feature upon which you are located. (See task number 071-329-100, Identify Terrain Features On A Map.) 2.   Determine what types of terrain features surround your location. 3.   Orient the map. (See task number 071-329-1012, Orient A Map To The Ground By Map Terrain Association.) 4.   Determine the four cardinal directions (north, south, east, and west). (See task number 071-329-1002, Determine The Grid Coordinates Of A Point On A Military Map.) 5.   Determine your location. a. Relate the terrain features on the ground to those shown on the map. b. After you have determined where the terrain features on the ground and those on the map coincide, determine the coordinates of your location using the coordinate scale and protractor.

Evaluation Preparation:

Setup: Select a field site that has terrain features that are shown on the map. At the test site, provide a field table, a 1:50,000-scale military map of the area, pencil, paper, and a coordinate scale.

Brief Soldier: Tell the soldier he or she must determine a six-digit coordinate of his or her location within 7 minutes. Tell the soldier one of the cardinal directions (north, south, east, or west).

 Performance Measures GO NO GO 1.   Identified the type of terrain feature upon which you were located. -- -- 2.   Identified the terrain features around your location. -- -- 3.   Oriented the map. -- -- 4.   Determined the remaining three cardinal directions. -- -- 5.   Identified the same terrain features on the map. -- -- 6.   Determined the six-digit grid coordinate of your own location (the point selected must be within 100 meters of your location). -- --

Evaluation Guidance:  Score the soldier GO if all performance measures are passed. Score the soldier NO GO if any performance measure is failed. If the soldier scores NO GO, show the soldier what was done wrong and how to do it correctly.

 References Required Related FM 3-25.26

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