Frost line depth in Rio Grande County, CO

How deep the ground freezes in Rio Grande County, CO

52 in. Dig to 52 in, just below the frost. Nearest NOAA station: Monte Vista 2w, 16 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 · Snow