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Soil Survey
MLRA Region 10: Similar/Dissimilar Guide for Mapunit Components. Contact Michael Whited for additional information.
This document requires Microsoft Word. Region 10 Similar/Dissimilar Guide (DOC; 55 KB)
Substrata Material Classification Decision Tree (JPG; 135 KB)
Contact Michael Whited for additional assistance.
These documents require Adobe Acrobat. Development and Revision (PDF; 18 KB) Procedure to Obtain OSDs (PDF; 17 KB) Guideline for Completing and Updating OSDs (PDF; 260 KB)
National Soil Survey Handbook guidelines include the following: