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U.S. Route 277 (US 277, US-277) is a north–south United States Highway that is a spur route of U.S. Route 77. It no longer connects to its parent route, US 77, although it does intersect another one of its spurs (U.S. Route 377). It runs for 633 miles (1,019 km) across Oklahoma and Texas. US 277's northern terminus is in Newcastle, Oklahoma

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