Question: U.S. Route 60 in Oklahoma runs through a city that is the county seat of what county?

Documents:
source: U.S. Route 60 in Oklahoma
text: U.S. Route 60 in Oklahoma U.S. Route 60 (US-60) is a transcontinental U.S. highway extending from near Brenda, Arizona to Virginia Beach, Virginia on the Atlantic Ocean. Along the way, 352.39 mi of the route lies within the state of Oklahoma. The highway crosses into the state from Texas west of Arnett and serves many towns and cities in the northern part of the state, including Arnett, Seiling, Fairview, Enid, Ponca City, Pawhuska, Bartlesville, and Vinita. US-60 exits Oklahoma near Seneca, Missouri. In Oklahoma, US-60 has three business routes, serving Tonkawa, Ponca City, and Seneca. The first 60.2 mi of the route, from the Texas line to Seiling, is also designated as State Highway 51 (SH-51).

source: Pawhuska, Oklahoma
text: Pawhuska, Oklahoma Pawhuska is a city in and the county seat of Osage County, Oklahoma, United States.

source: Missouri Route 76
text: Missouri Route 76 Route 76 is a highway in the west half of southern Missouri running between U.S. Route 60 and U.S. Route 63 at Willow Springs and the Oklahoma state line near Tiff City where it continues as a county road. It is the most famous road in Branson where it is known as "76 Country Boulevard" and features many of the entertainment theaters for which Branson is famous. The road runs for its entirety through the Missouri Ozarks, and is at times very hilly and curvy.

source: U.S. Route 460
text: U.S. Route 460 U.S. Route 460 is a spur of U.S. Route 60. It currently runs for 655 miles (1,054 km) from Norfolk, Virginia, at U.S. Route 60 at Ocean View to Frankfort, Kentucky, at U.S. Route 60. It passes through the states of Virginia, West Virginia, and to Frankfort, Kentucky, the state capital. It goes through the cities of Norfolk, Portsmouth, Suffolk, Petersburg, Farmville, Lynchburg, Roanoke, Blacksburg, Tazewell, and Grundy, in Virginia; Princeton and Bluefield in West Virginia; and Pikeville, and Frankfort, Kentucky.

source: Virginia State Route 13
text: Virginia State Route 13 State Route 13 (SR 13) is a primary state highway in the U.S. state of Virginia. Known as Old Buckingham Road, the state highway runs 24.08 mi from U.S. Route 60 and SR 45 in Cumberland east to US 60 in Plain View. SR 13 parallels US 60 to the south through eastern Cumberland County and western Powhatan County and passes through the latter county's seat of Powhatan. The state highway is the only state-numbered highway in Virginia that shares a number with a U.S. Highway but does not form a state-numbered extension of that U.S. Highway. SR 13's number comes from being a segment of the original cross-state SR 13 in 1918; that highway included portions of modern US 60. In 1933, US 60 was shifted to its present corridor between Buena Vista and Richmond, replacing SR 13. Two years later, SR 13 was assigned to Old Buckingham Road when US 60 was moved to its present alignment from Cumberland to east of Powhatan.

source: Glen Ferris, West Virginia
text: Glen Ferris, West Virginia Glen Ferris is a census-designated place (CDP) on the western bank of the Kanawha River in Fayette County, West Virginia. It is situated approximately one mile south of the town of Gauley Bridge. The sole highway linking Glen Ferris to the area is U.S. Route 60, known also as the Midland Trail. As of the 2010 census, its population was 203; the community had 104 housing units, 87 of which were occupied. The village is roughly a mile and a half in length. Glen Ferris is home to two churches, one Apostolic and one Methodist. A railway owned by Norfolk Southern runs parallel to US Route 60 through the village.

source: Virginia State Route 249
text: Virginia State Route 249 State Route 249 (SR 249) is a primary state highway in the U.S. state of Virginia. Known as New Kent Highway, the state highway runs 18.43 mi from Interstate 64 (I-64) and SR 33 near Bottoms Bridge east to SR 33 and SR 30 at Angelview Church. According to signage on the segment of New Kent Highway between U.S. Route 60 and I-64, SR 249 extends slightly south from I-64 to end at US 60. SR 249, which is the old alignment of SR 33 before that highway was rerouted onto I-64, is the main local highway of northern New Kent County, providing access to the county seat of New Kent.

source: U.S. Route 431
text: U.S. Route 431 U.S. Route 431 is a spur of U.S. Route 31. It currently runs for 556 miles (895 km) from Owensboro, Kentucky at U.S. Route 60 to Dothan, Alabama, at U.S. Route 231 and U.S. Route 84.

source: U.S. Route 522
text: U.S. Route 522 U.S. Route 522 (US 522) is a 308 mi spur route of U.S. Route 22 in the eastern United States. The southern terminus of the route is at U.S. Route 60 in Powhatan, Virginia. The northern terminus is at U.S. Route 11 and U.S. Route 15 in Selinsgrove, Pennsylvania. US 522 passes through the states of Virginia, West Virginia, Maryland, and Pennsylvania. US 522 is a part of the National Highway System from SR 37 near Winchester, Virginia north to Interstate 70 (I-70) in Warfordsburg, Pennsylvania and from the Pennsylvania Turnpike (I-76) north to Selinsgrove.

source: U.S. Route 63 in Missouri
text: U.S. Route 63 in Missouri The highway passes south-to-north through Missouri, from Arkansas to Iowa, serving cities such as Rolla, Jefferson City, Columbia, Moberly, Macon, and Kirksville. Notable routes that are intersected include U.S. Route 60 in Howell County, Interstate 44 at Rolla, U.S. Route 50 (which it shares a concurrency with into Jefferson City south of the Missouri River until it reaches the junction with U.S. 54), U.S. Route 54 (which it overlaps in Jefferson City from the junction with U.S. Route 50 and crosses the Missouri River with on the Jefferson City Bridge), Interstate 70 at Columbia, U.S. Route 24 at Moberly, U.S. Route 36 at Macon, and U.S. Route 136 at Lancaster.

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Answer: Osage County