Lot-31-B9-F8.06-1964-Montana-Flood-Birch-Creek-Lewis-His.-Marker Previous Next Published June 5, 2015 at 1000 × 783 in Gallery DDamage caused to the road at the Captain Meriwether Lewis historical highway marker on U.S. Route 89, north of Dupuyer, Montana, along Birch Creek from the flood of 1964. Like this:Like Loading...