Here in UT they use a couple 1960s-era Howitzers for avalanche control in Little Cottonwood Canyon. They once loaded a shell with too much gunpowder and left a

Here in UT they use a couple 1960s-era Howitzers for avalanche control in Little Cottonwood Canyon. They once loaded a shell with too much gunpowder and left a crater in someone's back yard 10-15 miles away.