shows Alpha at the point of maximum curvature of the gully, and Bravo behind the presumed continuation of the curve. Charlie is not visible from here, but other viewpoints show it positioned consistent with the map relative to the two rides. Solution: Charlie Control #6 Feature: Southwest boulder, south side There are times when the Trail-O course-setter is simply trying to trick the orienteers. This is one. The vegetation obscures much of the scene. If competitors move a little bit back and forth to get a better view of the flags, they can sometimes lose sight of the bigger picture, in this case, the lower boulder, out of sight from the viewing station, where the control circle is placed. Solution: Zero Control #7 Feature: bank It is fairly well known among orienteers that if a feature on a clue sheet has no positional modifier, one is to assume of”. A cliff/rock “middle face/earth bank is a linear feature, so of” refers to “middle position. All three of the flags lie on this center line. The more arcane principle is that for such vertical features, an unmodified clue implies “bottom
shows Alpha at the point of maximum curvature of the gully, and Bravo behind the presumed continuation of the curve. Charlie is not visible from here, but other viewpoints show it positioned consistent with the map relative to the two rides. Solution: Charlie Control #6 Feature: Southwest boulder, south side There are times when the Trail-O course-setter is simply trying to trick the orienteers. This is one. The vegetation obscures much of the scene. If competitors move a little bit back and forth to get a better view of the flags, they can sometimes lose sight of the bigger picture, in this case, the lower boulder, out of sight from the viewing station, where the control circle is placed. Solution: Zero Control #7 Feature: bank It is fairly well known among orienteers that if a feature on a clue sheet has no positional modifier, one is to assume “middle of”. A cliff/rock face/earth bank is a linear feature, so “middle of” refers to position. All three of the flags lie on this center line. The more arcane principle is that for such vertical features, an unmodified clue implies “bottom
2014_Boggs_Trail-O_Commentary.docx