Stumpfield Marsh appears to be the result of the Hopkinton Dam project. The pond is littered with submerged and protruding tree trunks. The whole lake/pond is shallow and the water was clear when I went in early June. It took me about 2hrs to paddle around it. The only thing to watch for is the submerged trees and your hull. I really enjoyed it, it was breezy out but the pond is narrow so there was
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