The Graphic Overlay Method

Solution Map
Homepage  |  Introduction  |  Map Features  |  Feature Measurements  |  Coding
Value Added Maps  |  Elevation Maps  |  Soil Survey Maps  |  Soil Attributes
Soil Characteristics  |  Combining Strategy  |  Process Map  |  Solution Map 
Above 150 feet elevation
All land above 150 feet in elevation,

All land having a "slight" risk for septic drain fields.

Slight Risk for Septic Field

The maps are placed one over another.  The visible "green" areas (right) satisfy the example criteria.  

If you were building a home (with on site septic requirements) you would want to locate that structure within (or very close to) the green areas. 

Many valuable maps can be created using different variations of the SCS Soils information and/or information gathered from other maps.

Use your Browser Reload to review the combining sequence.

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All contents copyright (C) 1993-1999,  D. Fehler  All rights reserved.