That 6,500-acre wildfire at Fort Carson Army post in Colorado Springs wasn't just a result of drought-like conditions on an unusually warm winter day. It turns out that good ol' plastic explosives played a part in the Quarry Fire, which, according to the Colorado Springs Gazette, is now 70 percent contained. Garrison commander Colonel Gene Smith is quoted in the newspaper as saying that assessments of the conditions appeared to indicate that triggering explosions as part of a training exercise would be okay without fire crews on standby. Yet wind whipped a small fire through grasses, igniting a blaze that soon jumped the post's eastern boundary, spurring evacuations. No structures have been destroyed and no injuries were reported, according to The Associated Press.