Advice on resolving this is offered in the Theory of Least Energy . A good gametrail may be a track. A track may be faint in some parts and more than a little difficult to follow. For hints on following faint routes, see the Theory of Least Energy . Most trails in Grand Canyon are not maintained and are much more difficult to follow than the Bright Angel or Kaibab trails.
Unmaintained trails exist because they are used.
Some trails, the Boucher for example, once disappeared from maps but were marked again when use restored them. Many, such as the Tanner Trail are not in quite the same place today as shown in older surveys. See About Exploring .