Duck Poop Lake did not exist when I first moved into here.  Over time, they dammed either end of Gunner's Branch Creek.  The front end (where the water enters) is pictured here.  It is also a flood plain for all the housing here although I must admit flooding is not much of a problem where we live.

The other end of the dam contains the control gate and the creek continues into Seneca Creek State Park as a regular creek.  I suppose the real name for Duck Poop Lake is Gunner's Branch Lake.  There aren't any natural lakes in all of Maryland but the man made ones really aren't the same.