Depends where you are in Maine, if south, it's about 5'. In the Northern Aroostook County it's 7'.5".
42 in.
42"
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.
24 inches
42 inches
What is the frostline depth in saskatchewan Canada
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.
Lake St. Clair is 27 inches deep. It is a lake that is located in between Michigan and Canada.
42" below grade.
hei/her mysteries as deep as Lake Michigan
look deep in your heart. you know the answers
Frostline in Utah (not specifically for Box Elder County) is 30 inches deep. I assume that this is a typical statewide rule of thumb good for most locations but would not apply to very high elevations.
Lake Michigan averages 279 feet deep, and is 925 feet at its deepest point. It is approximately 118 miles wide and 307 miles long and is the only great lake located entirely in the U.S. I hope it's the answer you've been looking for. :)