STOCKTON, Minn.—A wreck on Stockton Hill closed the main east-west route in and out of Winona about 6:45 a.m. Motorists were diverted to alternate routes, either to Interstate 90 or to Minnesota City. Heavily traveled U.S. Highway 14 crosses Stockton Hill at 1,200 feet A pair of near-horseshoe curves flank the summit. The curvy two-lane route climbs 580 feet out of Winona and 480 out of Stockton, all in less than seven miles.