NASIS

National Soil Survey Information System

National NASIS Website

These documents require Acrobat Reader.  If you encounter any problems with the files provided on this page, please contact Dave Harper at (804) 287-1647.

   Virginia NASIS User's Guide (pdf, 383 KB)
   Virginia Site and Pedon User's Guide (pdf, 804 KB)
   Virginia User's Guide for NASIS Taxonomic Unit Descriptions (pdf, 950 KB)
   Virginia MUG User's Guide (pdf, 191 KB)
   VALUES Guidebook (populating Virginia Soil Management Groups and Yields) (pdf, 650 KB)
   MO13 NASIS Thunderbook (pdf, 780 KB)
   Rock fragment volume to weight conversion chart (pdf, 238 KB)
   Index to surface runoff class (pdf, 59 KB)
   Percent passing #40 and #200 sieve chart -- 8.5" x 11" (pdf, 40 KB)
   Kf factor population guide (pdf, 124 KB)
   Kw factor population guide (pdf, 55 KB) 

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