Acreages within various characteristic layers stratified by Inventoried Roadless Area categories within Virginia.
All acreage figures are rounded to the nearest 1,000.
Virginia INVENTORIED ROADLESS AREA CATEGORIES SUM
  …that does not allow road construction and reconstruction   …that does not allow road construction and the Forest  Plan recommends wilderness   …that does allow road construction and reconstruction  
IRA Category acres (1,000)   273   12   109   394
       
FIRE CONDITION CLASS   acres* (1,000) %   acres* (1,000) %   acres* (1,000) %   acres* (1,000)
Condition Class 1     141 52   7 60   57 52   205
Condition Class 2     66 24     1   27 25   93
Condition Class 3     40 15     1   13 12   53
Non-Vegetation       0     0     0    
Agriculture       0     0     0    
Urban/Development/Agriculture   26 10   4 38   12 11   42
Water         0     0     0    
 
FIRE REGIMES                      
0-35 yrs; Low Severity     259 95   12 100   108 99   379
0-35 yrs; Stand Replacement       0     0     0    
35-100 yrs; Mixed Severity     12 4     0   1 1   13
35-100 yrs; Stand Replacement   2 1     0     0   2
200 + yrs; Stand Replacement     0     0     0    
Barren       0     0     0    
Water         0     0     0    
 
MORTALITY                      
Risk of Mortality Not Present     201 74   9 79   86 79   296
Risk of Mortality Present     71 26   2 21   23 21   96
 
LAND COVER CLASS                      
Deciduous Forest     154 57   7 60   62 57   223
Evergreen Forest     32 12     1   11 10   43
Mixed Forest     61 22     1   24 22   85
Shrub-Brush Rangeland       0     0     0    
Rangeland       0     0     0    
Wetland       0     0     0    
Tundra       0     0     0    
Urban/Development/Agriculture   26 10   4 38   13 12   43
Barren Land       0     0     0    
Water         0     0     0    
 
PROTECTED AREA DATABASE                      
GAP Code 1       0     0     0    
GAP Code 2     7 3     0   15 14   22
GAP Code 3     264 97   12 100   93 85   369
Outside of PAD       1 0     0   1 1   2
* These GIS overlays were prepared from coverages compiled at various scales and resolutions.  To account for the differences in scales and resolutions, a percent-area by attribute was calculated for each characteristic overlay layer.  The acres in each roadless category/characteristic attribute were calculated by multiplying percent-area and total acreages from the Inventoried Roadless Area coverage.  Derived acres have been rounded to the nearest 1,000 acres.