There's a seldom used over grown side path, follow that

You walk along this road you find. Used to be a normal two lane dirt road. But no one uses it now, or seldom it seems. Weeds over grow it. Wheat and corn grow along side it. You find a rock with a sea shell fossil on it and pocket the little treasure. Up ahead is a bridge closed sign and the road blocked off by thick old cables. You step over the cables and approach the wooden bridge. The Only sound is the call of woody sounding birds.