Acreages within various characteristic layers stratified by Inventoried Roadless Area categories within Nevada.
All acreage figures are rounded to the nearest 1,000.
Nevada 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)   18   2   3,166   3,186
       
FIRE CONDITION CLASS   acres* (1,000) %   acres* (1,000) %   acres* (1,000) %   acres* (1,000)
Condition Class 1     4 21   1 78   1,172 37   1,177
Condition Class 2     9 51     17   1,168 37   1,177
Condition Class 3     3 14     5   643 20   646
Non-Vegetation       0     0   32 1   32
Agriculture       0     0   98 3   98
Urban/Development/Agriculture     0     0   54 2   54
Water       2 14     0     0   2
 
FIRE REGIMES                      
0-35 yrs; Low Severity     12 67   1 64   1,998 63   2,011
0-35 yrs; Stand Replacement     1 8     0   155 5   156
35-100 yrs; Mixed Severity       0   1 32   921 29   922
35-100 yrs; Stand Replacement     0     0   47 2   47
200 + yrs; Stand Replacement   2 11     4   13 0   15
Barren       0     0   32 1   32
Water       2 14     0     0   2
 
MORTALITY                      
Risk of Mortality Not Present     16 90   2 93   3,150 100   3,168
Risk of Mortality Present     2 10     7   16 1   18
 
LAND COVER CLASS                      
Deciduous Forest       0     0   127 4   127
Evergreen Forest     15 84   1 45   1,745 55   1,761
Mixed Forest       0     0     0    
Shrub-Brush Rangeland       2   1 55   918 29   919
Rangeland       0     0   193 6   193
Wetland       0     0     0    
Tundra       0     0     0    
Urban/Development/Agriculture     0     0   152 5   152
Barren Land       0     0   32 1   32
Water       2 14     0     0   2
 
PROTECTED AREA DATABASE                      
GAP Code 1     1 3     4   22 1   23
GAP Code 2       3     0   41 1   41
GAP Code 3     17 94   1 79   2,856 90   2,874
Outside of PAD         1     17   247 8   247
* 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.