Green circles for archaeological signals, red circles loose coins/treasure down to 2 or 3 feet, depending on location. Red X is 6-7 feet deep, probably coins/treasure but could be multiple targets. The lake, sure looks like one I've dowsed before....if so, a high speed racing boat flipped while being tested, went to the bottom. Inland lakes are full of stuff anyway, they used to dump old unwanted items.