This is a "Town Pound" - usually located near a common or town center
back then fences were not what they are now - if someone found a stray horse,cow, pig, sheep etc - you brought it here -
usually they look like an above ground cellar hole - 3 or 4 sided - with a wooden fence gate
made of field stones - usually around 4 or 5 feet high - most I have seen are like 20' X 20'
someone was in charge of looking after it and responsible for feeding the animals
if one of your animals ended up here - usually you had to pay a fee to get it back or for feeding or care
for the time it was in there - kind of like a colonial dog pound
there's usually not a lot to be found "in" them - Have found a few coppers and large cents outside
of them - probably dropped during the winter in the snow while trying to pay