Acreages within various characteristic layers stratified by Inventoried Roadless Area categories within Wyoming.
All acreage figures are rounded to the nearest 1,000.
Wyoming 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)   154   17   3,085   3,257
       
FIRE CONDITION CLASS   acres* (1,000) %   acres* (1,000) %   acres* (1,000) %   acres* (1,000)
Condition Class 1     78 51   14 80   1,728 56   1,820
Condition Class 2     62 40   3 20   1,092 35   1,157
Condition Class 3     6 4     0   52 2   58
Non-Vegetation       0     0   3 0   3
Agriculture     1 1     0   49 2   50
Urban/Development/Agriculture   7 5     0   157 5   164
Water         0     0   3 0   3
 
FIRE REGIMES                      
0-35 yrs; Low Severity     4 2     0   80 3   84
0-35 yrs; Stand Replacement       0     0   62 2   62
35-100 yrs; Mixed Severity     136 88   3 20   2,033 66   2,172
35-100 yrs; Stand Replacement   1 1     0   102 3   103
200 + yrs; Stand Replacement   13 9   14 80   802 26   829
Barren       0     0   3 0   3
Water         0     0   3 0   3
 
MORTALITY                      
Risk of Mortality Not Present     128 83   17 100   2,576 84   2,721
Risk of Mortality Present     26 17     0   509 17   535
 
LAND COVER CLASS                      
Deciduous Forest     8 5     0   34 1   42
Evergreen Forest     138 89   14 79   2,684 87   2,836
Mixed Forest       0     0     0    
Shrub-Brush Rangeland       0     0   37 1   37
Rangeland       0     0   83 3   83
Wetland       0     0     0    
Tundra     1 1   4 21   34 1   39
Urban/Development/Agriculture   8 5     0   207 7   215
Barren Land       0     0   3 0   3
Water         0     0   3 0   3
 
PROTECTED AREA DATABASE                      
GAP Code 1     1 1     3   40 1   41
GAP Code 2     5 3     0   3 0   8
GAP Code 3     149 96   17 97   3,017 98   3,183
Outside of PAD         0     0   25 1   25
* 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.