Map 243.  Low fidelity interpretation of area surrounding Marine Corps Base Quantico, Virginia.  Grid 7560 to 0480.

Terrain colors.

Light green - clear terrain.

Medium green - wooded terrain, passible to personnel and vehicles.

Dark green - wooded terrain, impassible to wheeled and tracked vehicles.

Irregular gray - urban or built up terrain.

Gray line edged in black - high speed road.

Light gray line edged in brown - low speed road or trail.

Blue - water.

Blue with brown specks - swamp, impassible to wheeled and tracked vehicles.  This terrain is usually also a line of sight block due to woods and brush.
