About U.S. Highway 163
U.S. Highway 163 runs just 64 miles through the rugged desert country of southern Utah and northern Arizona. It begins at Kayenta, Arizona, at the intersection with U.S. Highway 160, and heads mostly north to the Utah border, then heads mostly east through Mexican Hat and to the Junction with U.S. Highway 191 near Bluff. It passes through a scenic country of wild and interesting rock formations with little vegetation.
Don't be thrown by the junction of Highways 191 and 163. U.S. Highway 191 heads south out of the intersection, but you turn towards the east to go northbound on 191. U.S. Highway 163 heads west out of the intersection. If you go straight through the intersection, you switch from the one highway to the other.
U.S. Highway 163 passes by Monument Valley, a tribal park run by the Navajo Nation. The tall, monolithic stone formations of the park extend to the north of the park, and the highway passes right through this area. It also passes by the Valley of the Gods, another scenic attraction featuring rock formations near Mexican Hat. It crosses the San Juan River at Mexican Hat.
U.S. Highway 163 doesn't follow the the standard numbering scheme for U.S. highways in that it has nothing to do with U.S. Highway 63, which would normally be its "parent" route. It was commissioned in 1971. Between 1934 and 1937 there was another U.S. Highway 163 in Iowa which is now called Iowa Highway 163.
All of the Utah section of the highway is available in the UntraveledRoad virtual tour, plus a short distance on the Arizona side.