Median size in acres of large fires by Forest Service region on National Forest System lands, 1986-1996
Fires are displayed by cause and location.
	Lightning Caused				Human Caused				All Causes
*Regions	Inventoried Roadless Areas	Wilderness Areas	Outside Wilderness and Inventoried Roadless Areas		Inventoried Roadless Areas	Wilderness Areas	Outside Wilderness and Inventoried Roadless Areas		Inventoried Roadless Areas	Wilderness Areas	Outside Wilderness and Inventoried Roadless Areas
Northern (1)	2,470	3,250	3,680		5,710	5,864	2,230		3,245	3,507	3,336
Rocky Mountains (2)	3,190	13,100	4,034		1,572	0	2,152		1,906	13,100	2,983
Southwestern (3)	2,910	4,200	2,315		13,000	1,237	2,950		3,080	4,050	2,450
Intermountain (4)	3,087	3,530	4,068		2,147	4,160	5,169		2,865	3,549	4,585
Pacific Southwest (5)	4,840	2,598	6,830		2,298	2,559	2,516		2,550	2,990	3,460
Pacific Northwest (6)	4,115	4,725	3,690		9,200	2,201	2,119		4,730	3,648	2,800
Southern (8)	1,115	2,015	1,225		3,400	1,964	1,649		1,180	2,015	1,564
Eastern (9)	0	3,048	1,210		0	12,600	1,234		0	3,589	1,226
Total	3,094	3,600	3,660		2,550	3,125	2,230		3,069	3,509	2,800
*Region 10  is not included.  No data available for Alaska.
(Roadless GIS Database 2000)