A sketch map showing the approximate locations of these elements is useful as a record of the general overview. The sketch map information from the reconnaissance should be transferred to a topographic map. If a well-prepared map is not available, the planner should either make one or borrow from other maps. A good source is the U.S. Geological Survey regional quadrangle map, which is available from the Department of Natural Resources, Indianapolis. Soil survey maps, maps of adjoining properties, and aerial photographs might also be useful.
Side loops off the main trail can add extra length and interest.
These may also serve as introduction trails to a park or forest, presenting a sampler of the species, ecosystems and other features on the longer trails. A short, 100-200 yard loop can often give a quick overview to the passing visitor who wants a quick reference guide to the area. It may help with decisions whether to stay for more or to return later. Selecting the Route Using the contour map, with reconnaissance information drawn in, and with interpretive features selected, the trail can be located on a transparent overlay of tracing paper or acetate. The trail should enter and exit the property at the same place, for the convenience of the users.