GRID NORTH is defined as which of the following?

GRID NORTH is defined as which of the following?

• A. North that is established by using the vertical grid lines on a map.
• B. True North defined by geographic coordinates.
• C. Magnetic North as indicated by a compass.
• D. A fixed direction used for map orientation unrelated to grids.

Answer: (A)

Grid north is the direction toward the top of the map grid, defined by the map’s grid lines. When a map uses a rectangular grid, the north direction follows the vertical grid lines, so bearings in grid coordinates point toward that grid north. This is different from true north, which points toward the geographic North Pole, and from magnetic north, which is where a compass points. The grid North reference is tied to the map’s projection and grid structure, hence it is established by the vertical grid lines on the map.

Grid north is the direction toward the top of the map grid, defined by the map’s grid lines. When a map uses a rectangular grid, the north direction follows the vertical grid lines, so bearings in grid coordinates point toward that grid north. This is different from true north, which points toward the geographic North Pole, and from magnetic north, which is where a compass points. The grid North reference is tied to the map’s projection and grid structure, hence it is established by the vertical grid lines on the map.