December 29: Water flowing

Watching the river cascade over the spillway of the Seabright Dam this afternoon, a never-ending sheet of white water washing down the concrete, I began to wonder where it all comes from. We tend to think of lakes and ponds as relatively static bodies of water. But obviously Megunticook Lake and Norton's Pond, the sources of the river, replenish constantly or they'd have run dry by now from this constant outflow. Rainwater and melted snow aren't enough to keep the river brimming against the splashboards as it is now, as it always seems to be.

Where does it come from,
this river ever-flowing?
I think: hidden springs.