Topographic maps show land forms, topographic features, and elevations by means of contour lines in order to convey 3-dimensional surface features on a 2-dimentional map.

They can be very useful to do the following:

  • Identify existing roads and locate new roads.
  • Locate landings on firm, flat ground away from SMZs.
  • Classify streams.
  • Locate drainages, steep slopes, and wet depressions that should be avoided.
  • Determine what and where BMPs will be necessary.

Topographic maps can be obtained from:

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