The frost line in Salt Lake City is 30 in. I would assume that that is average for most of the state.
Some areas of the mountains receive over 500 inches of winter snow.
no Frost
no Frost
frost line in pa is 42 inches
24in
42 inches
one metre
42"
3ft
What is the frost line depth in louisville Kentucky
They are located below the frost line
32"
48"