www.lib.utexas.edu/topo/texas/txu-oclc-50141851-austin_west-1988.jpg
The above map is a depiction of western Austin including elevation changes. In this representation each line represents a 20 foot change in elevation. Also included are roadways, municipalities and local points of interest. In comparing this to the planimetric map you can see the amount of information missing in the planimetric version.
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