Acreages within various characteristic layers stratified by Inventoried Roadless Area categories within Utah.
All acreage figures are rounded to the nearest 1,000.
Utah 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)   446       3,567   4,013
       
FIRE CONDITION CLASS   acres* (1,000) %   acres* (1,000) %   acres* (1,000) %   acres* (1,000)
Condition Class 1     322 72     0   1,930 54   2,252
Condition Class 2     95 21     0   1,145 32   1,240
Condition Class 3     8 2     0   250 7   258
Non-Vegetation       0     0     0    
Agriculture     4 1     0   78 2   82
Urban/Development/Agriculture   17 4     0   164 5   181
Water         0     0     0    
 
FIRE REGIMES                      
0-35 yrs; Low Severity     108 24     0   1,805 51   1,913
0-35 yrs; Stand Replacement       0     0     0    
35-100 yrs; Mixed Severity     267 60     0   1,716 48   1,983
35-100 yrs; Stand Replacement     0     0     0    
200 + yrs; Stand Replacement   72 16     0   46 1   118
Barren       0     0     0    
Water         0     0     0    
 
MORTALITY                      
Risk of Mortality Not Present     427 96     0   3,364 94   3,791
Risk of Mortality Present     20 4     0   203 6   223
 
LAND COVER CLASS                      
Deciduous Forest     75 17     0   842 24   917
Evergreen Forest     324 73     0   2,154 60   2,478
Mixed Forest       0     0     0    
Shrub-Brush Rangeland     11 3     0   292 8   303
Rangeland       0     0   32 1   32
Wetland       0     0     0    
Tundra     16 4     0   4 0   20
Urban/Development/Agriculture   20 5     0   243 7   263
Barren Land       0     0     0    
Water         0     0     0    
 
PROTECTED AREA DATABASE                      
GAP Code 1     5 1     0   11 0   16
GAP Code 2     8 2     0   29 1   37
GAP Code 3     430 96     0   3,464 97   3,894
Outside of PAD       4 1     0   61 2   65
* 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.