We use our shallow well (20 feet deep) in 50 below F all winter. The water is underground, not ground, and it does not freeze at about 15 feet below the surface.
We have a concrete lid, a piece of 8" white styrofoam on top, then a loose piece of plywood, with a rock on top. I put a 100 watt light bulb in it the first year, but it burnt out when I was gone for two months in the winter. It didn't freeze. We do usually get up to two feet of snow, and Schnooks melt it right down to nothing sometimes, and then it drops back to 50 below, still doesnât freeze.
20' Deep Well, 3' Diameter Metal Pipe - With Holes We "Cut" With A Sharp Pick Ax, 3 Double Loads Of Drain Rock - All Around The Outside - At The Bottom - A Big Water Storage Area - And More Infiltration Area With Lots Of Rock, Concrete Lid
At the left is the styrofoam, at the right is the big rock we put on top
Good luck.
Alex
btw Our pipes that go from the well to the cabin are about 10' deep and do not freeze.