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Aerial Mulching in Fourmile Canyon Fire burn area

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Published on Apr 8, 2011

With increased potential for flooding, debris flows and weed invasion in the Fourmile Canyon Fire area due to loss of vegetation and bare slopes, the Boulder County Fire Rehabilitation Implementation Team conducted a series of treatments aimed at reducing erosion and weeds in the areas hardest hit by the fire that burned more than 6,000 acres and destroyed 169 homes in September 2010.

Aerial mulching treatments consisted of certified weed-free straw and WoodStraw being dropped in pre-determined areas from helicopters. Target areas were determined by a set of criteria that includes slope, burn severity, flood/debris flow risk, and values downstream (including human life, safety and property). In total, approximately 1,960 acres were aerially mulched inside the fire boundary.

Aerial operations began on April 7, 2011 in the vicinity of Sugarloaf Road and Fourmile Canyon Drive and moved to areas within Sunshine Canyon.

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