Frost line depth in Montrose County, CO

How deep the ground freezes in Montrose County, CO

29 in. Dig to 30 in, just below the frost. Nearest NOAA station: Norwood, 19.1 mi.

Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.

Code depth · Method