According to the Army Corps of Engineers, it is 36", on average. It may be somewhat different at your specific location within the state, based on several factors.
42"
24 inches
Asteroids where mainly formed inside the frostline and are mainly rocks and metals. Comets where formed outside the frostline and are mainly Water ice and other volatile chemicals.
42" below grade.
Depends where you are in Maine, if south, it's about 5'. In the Northern Aroostook County it's 7'.5".
Maryland Maryland
What is the frostline depth in saskatchewan Canada
Because the frost can settle around things and shift them about. Pipes, conduits and such that are buried beneath the frost line are much more likely to stay in place.
It depends on where you live and is associated with latitude. The further you go north or south of the equator, the deeper the frost line tends top be.
{| !| Maryland, My Maryland . |}
Massachusetts Maryland is not a place. Do you mean Massachusetts and Maryland? The capital of Massachusetts is Boston and the capital of Maryland is Annapolis.
Delaware Maryland Pennsylvania Virginia --------- Maryland and Virginia, according to wikipedia and maps.google.com.