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attack point Available from Silva beginners Bjorn Kjellstrom blue flag boundaries check your compass code letters collecting feature color compass bearing competitor contour contour line control card control markers control points course Cross-Country or Free declination subtract descriptive clues dirt road east exer Expert With Map fastest feet finish forest Gordon Pirie graduation ring inexperienced orienteer John Disley judging distance landmark Line Orienteering loop magnetic north-south lines Map and Compass map reading master map area meadow meters millimeter scale minutes late Mississippi River number of control offset technique orienteer's name orienteering event pace path penalty pinprick Pivot the slip plastic plate quadrangle Railroad recorder's sheet result board ring or dial route orienteering running/walking score orienteering Scouts shown slip of paper stream team competition teer terrain tick mark topographic map track Triangular Control Station true north U.S. Army U.S. Geological Survey U.S. land survey West declination woods