Help solve the mystery. What are these donught-like structures on the Hudson River bottom? Located due West of Ossining. They are each about 10 meters in diameter. Found by the NYS DEC during sonar benthic mapping. Are they manmade objects or debris? Sand riffs? Underground springs? Send your guesses to the guestbook.
A scuba investigation is planned with the Urban Divers organization for Spring 2006.