Quite some time ago, when arial photos first started showing up on the
web, my dad and I noticed what appeared to be a large lake in an area
of woods that we knew pretty well.
After seeing a lake on topographic maps as well (in an area where we
were pretty sure we hadn't seen one) we decided to just put the
location in a GPS and see what was out there.
This is what we found - a rather large open area, that shows signs of
possibly filling with water after a heavy rain. The ground was
very dry - it has not seen water in a long time.