I am curious why the water doesn't just leak into the ground? I build a pond in my back yard and when a branch falls from the trees above penetrating the lining, the water leaks into the ground and empties my pond. Yet people built a dam a century ago and the water happily collects into a reservoir. Can anyone explain the geology of this?
Nikon D610, 1/60 second at f/22, ISo 100, 17mm (17-35mm) - 9586
I am Robert McKay Jones, a photographer from Sterling, Massachusetts. I take photographs almost every day. I will post my favorites here.