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A map is most satisfactorily oriented by use of a known location on the map and a known landmark. Placing matches or pine needles vertically on the map at the location and landmark, rotate the map until the matches align with the known landmark. The map is thus oriented, more accurately than by compass. A map may be oriented with three known landmarks, but with one's own location unknown. Place a match near the center of a thin sheet of paper and sight across it to another match which is lined up with one of the known landmarks. Draw a line on the paper in that direction. Without moving the paper, sight across the center match to the other landmarks and draw similar lines. The landmarks should be as diverse as possible. Placing this sheet over the unoriented map, move it to a position in which all three lines will, on the map, pass through the three known landmarks. The center point from which the lines were drawn will then be the position of the observer, and the map can be oriented with any one of the three landmarks. |
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