What covered bridge is the oldest in Parke County?
Jackson Covered Bridge- N39°27.732 W087°14.200
Portland Mills Covered Bridge- N 39° 27.770 W 087° 14.267
Bridgeton Covered Bridge- N 39° 27.759 W 087° 14.259
Mansfield Covered Bridge - N39°27.742 W087°14.268