I would guess the drainage area is probably 60 acres. The pasture is probably only half the watershed, the rest is row crop and farm yard. Up until several years ago there was still huge bass and catfish in it, and that was when it was 3 foot deep with cows in it.
There was 3 dry ponds that we patched up and we built another one on the other side of those trees for a total of 4, so there is 4 tile inlets dumping into the pond.
