Townsend State Forest in Townsend, MA, where the above photo was NOT taken, has its share of beaver activity. It is also close to the state line, so a hiker with a bit of ambition can walk to New Hampshire.
Eastern Massachusetts, where the above photo WAS taken, is covered in crust about two inches thick. This area under an oak tree has gotten worked through. I would presume it was deer in search of acorns. The snow was not deep, but it was well packed. The next day, we got about 1.5 inches of rain, so life has gotten easier for woodland foragers.
Some foragers have it easier. They can just nibble evergreen branches.