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2013 Beaver Creek Fire
The Beaver Creek Fire is a forest fire that began on August 7, 2013 after a lightning strike in an area twelve miles northeast of Fairfield, Idaho and northwest of Hailey, Idaho in Sawtooth National Forest. The fire burned through pine trees, sagebrush, timber in the understory, grass, and various riparian areas.〔 The fire coated the resort areas of Hailey, Ketchum, and Sun Valley, in a layer of thick soot and ash.〔 By the time the fire was fully contained on August 31, 114,900 acres of the Ketchum Ranger District of Sawtooth National Forest has been burned. Of the 114,900 acres burned, 57,000 acres were moderately damaged and 9,500 acres were severely damaged.
==Background==
The area where the Beaver Creek Fire took place has a history of fires. The Castle Rock Fire took place in 2007 near this area and before that the 2001 Sage Fire. The Beaver Creek Fire was easily the biggest of these three.〔 The Beaver Creek Fire is extremely similar to the Castle Rock Fire. The Castle Rock Fire was started by lightning, exactly like the Beaver Creek Fire. Both fires began around the same time. The Castle Rock Fire began August 16, and the Beaver Creek Fire began August 7. Neither fire killed any people. The Castle Rock fire differed from the Beaver Creek Fire in that the Castle Rock Fire only burnt 48,520 acres. Despite this difference both fires affected their ecosystem in similar ways and will use similar recovery methods. For a fire to cause as much damage as the Beaver Creek Fire, several factors play a part in the behavior of the fire. The behavior of fire depends on weather, fuel, and topographic information.
The Beaver Creek Fire was a large fire, larger than the past fires in the same area. Large fires that burn many acres usually occur in hot, dry temperatures where there is intense build-up of vegetation. Where there is more vegetation build-up, there is more fuel for a fire. Large fires are usually difficult to suppress, fast moving, and displace many native species.〔 In the beginning of the Beaver Creek Fire, the conditions in the area were dry, windy, low humidity, and a fairly hot temperature, which causes more active fires.〔 Along with these factors and the fact that the area of the Beaver Creek Fire is a disturbance dependent ecosystem that was in its season where natural fires usually occurred caused the Beaver Creek Fire to grow to be the large, mainly surface fire it became. With the combination of weather, fuel, and topography that the Beaver Creek Fire took place in, it was hard to stop. Not until humidity increased, some rainstorms began to take place, and cloud cover appeared in the area was the Beaver Creek Fire able to be drastically slowed and contained.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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