Acreages within Fire Condition classes 1, 2 & 3 and Fire Regime classes 1&2 and Stratified by Inventoried Roadless Area Category
All acreage figures are rounded to the nearest 1,000.  Fire condition class and fire regime data were only available for the lower 48 states.  This table does not include acreages in Alaska or Puerto Rico.
  1B 1B-1 1C Non-IRA Land Inside NFS Boundary All Land Inside Forest Boundary
  CC1 CC2 CC3 OTHER CC1 CC2 CC3 OTHER CC1 CC2 CC3 OTHER CC1 CC2 CC3 OTHER CC1 CC2 CC3 OTHER
State REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2 REGIME 1&2
Alabama 1 11 1                   136 274 208 35 136 285 209 35
Alaska Fire Condition Class and Fire Regime data were not available for Alaska
Arizona 10 331 20 53   43 4 14 57 418 83 141 774 5,980 1,878 1,448 841 6,772 1,986 1,655
Arkansas 20   1 1         50 13 6 4 1,775 259 271 186 1,845 273 278 191
California 172 214 416 924 8 39 23 93 304 280 441 1,501 1,134 2,461 5,772 6,914 1,619 2,994 6,652 9,433
Colorado 5 82 153 684   1 1 9 29 514 400 2,554 759 2,231 996 6,090 793 2,829 1,550 9,338
Connecticut                                        
Delaware                                        
District of Columbia                                        
Florida 17     3 6       24     1 1,028 11   63 1,074 12   67
Georgia 16 18 3 1         13 11 1   355 336 62 48 384 365 66 50
Hawaii                                        
Idaho 66 177 30 2,012 39 53 5 1,274 186 458 41 4,980 835 1,574 224 8,502 1,126 2,263 301 16,768
Illinois   2 2             1 4   13 79 147 44 13 83 153 45
Indiana                     7 1   11 114 63   11 121 64
Iowa                                        
Kansas                         22 65   21 22 65   21
Kentucky                 1     2 138     659 139     660
Louisiana 1 1             5       397 173 4 24 403 173 4 24
Maine       1               5       47       53
Maryland                                        
Massachusetts                                        
Michigan                       16 69     2,772 69     2,788
Minnesota                       62       2,775       2,837
Mississippi                 1   1   676 311 48 121 677 312 49 121
Missouri                 21 1 2 1 234 362 728 143 255 364 730 144
Montana 31 65 31 1,601 3 36 8 777 14 122 51 3,656 338 834 252 9,073 387 1,057 342 15,108
Nebraska                         37 225 1 90 37 225 1 90
Nevada 2 9 2 5 1     1 538 1,044 472 1,113 438 759 379 1,070 979 1,813 853 2,187
New Hampshire       121               114       493       728
New Jersey                                        
New Mexico 116 565 254 165 11 11 8 36 58 215 102 55 1,324 3,242 1,821 1,343 1,510 4,033 2,185 1,599
New York                           4 1 11   4 1 11
North Carolina 12 4     7 6 2   90 43 3 6 650 263 98 60 759 316 103 66
North Dakota                 193     74 634     205 827     279
Ohio                           65 5 160   65 5 160
Oklahoma                 2 11     161 59 14 150 163 70 14 150
Oregon 5 64 145 583         69 235 283 580 247 2,119 4,601 6,727 321 2,418 5,029 7,890
Pennsylvania   4 2 18               1   58 52 378   63 54 397
Puerto Rico Fire Condition Class and Fire Regime data were not available for Puerto Rico
Rhode Island                                        
South Carolina 2               2 2     494 50 12 50 499 53 12 50
South Dakota                 22 53 5   328 1,043 470 91 350 1,096 475 91
Tennessee 26 8 5           28 10 4 4 381 171 18 43 435 189 27 47
Texas                 3   1   543 40 32 136 547 40 33 136
Utah 21 78 6 341         454 1,038 240 1,835 557 1,076 146 2,386 1,032 2,192 393 4,562
Vermont       16               10       351       376
Virgin Islands Fire Condition Class and Fire Regime data were not available for the Virgin Islands
Virginia 137 65 31 40 7     4 56 27 13 14 598 309 102 258 798 401 146 315
Washington 10 123 119 1,032   3 3 9 2 126 223 365 121 911 1,299 4,868 134 1,161 1,645 6,275
West Virginia 4 4 4 2         4 41 41 101 20 225 142 444 28 271 187 547
Wisconsin                       69   1   1,453   1   1,522
Wyoming   3   151       17 16 113 7 2,950 111 1,522 57 4,292 126 1,637 64 7,410
SUM 674 1,830 1,225 7,755 84 192 54 2,234 2,243 4,778 2,431 20,215 15,329 27,102 19,956 64,087 18,330 33,902 23,667 94,291
Definitions of Categories of Inventoried Roadless Areas
1B Inventoried roadless area where road construction or reconstruction is not allowed
1B-1 Inventoried roadless area where road construction or reconstruction is not allowed, and the forest plan recommends as wilderness
1C Inventoried roadless area where road construction or reconstruction is allowed
Definitions of Fire Condition Classes
1 Forested areas with an historically short fire return interval usually have frequent fires of low intensity
2 One or more fire return intervals have been missed, possibly resulting in increased fire sizes and intensities and decreased landscape mosaics and diversity
3 Multiple fire return intervals have been missed resulting in dramatic departure from historical conditions
Definitions of Fire Regimes
1   0-35+ years/low severity
2   0-35+ years/stand-replacement
The Fire Regimes are described in terms of frequency and severity and represent pre-settlement, historical fire processes. Fire regimes I and II represent frequent fire return intervals. The 0-35+ years/low severity fire regime (I) occurs mostly on forested land. The 0-35+years/stand-replacement regime (II) occurs mostly on grasslands and shrublands. Fire regimes III, IV, and V have longer fire return intervals and occur on forest lands, shrublands, and grasslands.