Few years ago we were fishing at Fawcet. Well at one point in time, Fawcet was a lake that they floated logs on before transport to the mills. Thats why there are those logs stuck into the bottum near the boat launch.. but anyway. We went to pull in the anchor and couldn't. Felt like we had hooked the 'hole in the bottum of the sea'. So after much effort.. we managed to pull in our catch.
About 4 feet of ancient, giant chain. Probably used to hold the floating logs in place. Each link probably weighed 5 pounds.... all together 75lb if not a hundred.