represents water features:
Stream
River
Lake
Marsh
represents thickness of vegetation:
Yellow = open land, no trees
White = open, runnable forest
Green = low visibility, reduced running speed
Light green = slower running
Medium green = difficult running
Dark green = impassable
represents earth/land features:
Contour lines
Earth bank
Depression
Contour Lines show a change in elevation
represents rock features and man-made objects
Cliffs
Boulders (fields & clusters)
Roads
Trails
Buildings
Fences