A large accumulation of snow by the side of a street, at the end of an alleyway, or in a parking lot, usually accumulated by blowing wind or by snow ploughs. Generally at the very minimum a foot and can range up to over 8 feet, after which point they become snow hills. Anything over 15 feet is considered to be a snow mountain. Important to remember is that [measurments depend on location. These measurements are according to Montreal standards where in a usual winter, people are no strangers to snow hills.