 This concurrency leaves St. Johns and travels north for about until SR 61 turns to the northeast and heads toward Zuni, New Mexico.Continuing north, US 191 immediately enters the Navajo Nation and then travels another until it arrives at Interstate 40 in Sanders.Here, US 191 has a concurrency with I-40 for from Exit 339 to Exit 333 in Chambers, where US 191 continues north through the Navajo Nation, intersecting BIA Route 28 in Klagetoh before its arrival in Ganado, where a concurrency with SR 264 begins.