Question: What county shares a border with another county, where Lex, West Virginia can be found?

full_context: Document 1: Jed, West Virginia: Jed is an unincorporated community in McDowell County, West Virginia, United States. Jed is located on West Virginia Route 103, south-southeast of Welch.
Document 2: Andrews Geyser: Andrews Geyser is a man-made fountain in Old Fort, North Carolina in McDowell County. The fountain is named for Colonel Alexander Boyd Andrews, a North Carolina native who was the Vice President of the Southern Railway Company and one of the men responsible for the construction of the railroad between Old Fort and Asheville, North Carolina, in the late 19th century. The fountain was constructed in 1885 with a dual purpose: it was a feature of the Round Knob Hotel, and a tribute to the approximately 120 men who died building the railroad through this particularly treacherous stretch of land, that culminates with the crossing of the Eastern Continental Divide through the Swannanoa Tunnel. The fountain was said to be eye-catching for railroad passengers ascending the 13 miles of track and seven tunnels that peaks at the top of Swannanoa Gap because it could be seen several times along the route.
Document 3: Wyndam Downs, Lexington: Wyndham Downs is a neighborhood in southwestern Lexington, Kentucky, United States. Its boundaries are Man O War Boulevard and Old Higbee Mill Road to the north, Twain Ridge Road to the south, Clays Mill Road to the east, and Clemens Drive to the west.
Document 4: Excelsior, McDowell County, West Virginia: Excelsior is a community incorporated within the city of War in McDowell County, West Virginia. Excelsior is located along Dry Fork to the north of the city along West Virginia Route 16.
Document 5: Mohawk, West Virginia: Mohawk is an unincorporated community in McDowell County, West Virginia, United States. Mohawk is west-northwest of Iaeger. Mohawk had a post office, which opened on December 8, 1903, and closed on June 27, 2009. The community was named after the Mohawk Indians.
Document 6: Raleigh, North Carolina: Downtown area is home to historic neighborhoods and buildings such as the Sir Walter Raleigh Hotel built in the early 20th century, the restored City Market, the Fayetteville Street downtown business district, which includes the PNC Plaza and Wells Fargo Capitol Center buildings, as well as the North Carolina Museum of History, North Carolina Museum of Natural Sciences, North Carolina State Capitol, Peace College, the Raleigh City Museum, Raleigh Convention Center, Shaw University, and St. Augustine's College. The neighborhoods in Old Raleigh include Cameron Park, Boylan Heights, Country Club Hills, Coley Forest, Five Points, Budleigh, Glenwood-Brooklyn, Hayes Barton Historic District, Moore Square, Mordecai, Rosengarten Park, Belvidere Park, Woodcrest, and Historic Oakwood. In the 2000s, an effort by the Downtown Raleigh Alliance was made to separate this area of the city into five smaller districts: Fayetteville Street, Moore Square, Glenwood South, Warehouse (Raleigh), and Capital District (Raleigh). Some of the names have become common place among locals such as the Warehouse, Fayetteville Street, and Glenwood South Districts.
Document 7: Ashland, West Virginia: Ashland is an unincorporated community located in McDowell County, West Virginia, United States. Located on the headwaters of the North Fork of Elkhorn Creek, it is also the location of the national historic Ashland Company Store and the Ashland Trailhead for the Indian Ridge Trail, a part of the Hatfield McCoy Trail System. It is the birthplace of 1960s soul singer Garnet Mimms.
Document 8: Cedar Rock Falls: Cedar Rock Falls (Cedar Rock Creek Falls, Falls on Cedar Rock Creek) is a waterfall in Transylvania County, North Carolina, USA.
Document 9: Lex, West Virginia: Lex is an unincorporated community in McDowell County, West Virginia, United States. Lex is located on West Virginia Route 80 north of Bradshaw.
Document 10: Upland, McDowell County, West Virginia: Upland is an unincorporated community in McDowell County, West Virginia, United States. Upland is located on U.S. Route 52 south-southeast of Northfork.
Document 11: Jackson Falls National Register Historic District: The Jackson Falls National Register Historic District encompasses the historic village center of Jackson, New Hampshire. It consists of a cluster of buildings centered on the crossing of Jackson Village Road over the Wildcat River, extending on both sides of the river along Five Mile Circuit Road (aka Black Mountain Road) and Carter Notch Road, both of which are part of New Hampshire Route 16B. Most of the properties in the district were built between the 1860s and the 1930s, and are reflective of the community's growth as a summer resort area. The district was listed on the National Register of Historic Places in 2003.
Document 12: Nancy Lincoln Inn: The Nancy Lincoln Inn is a historic building located at the Abraham Lincoln Birthplace National Historic Site in LaRue County, Kentucky, just south of Hodgenville, Kentucky. Despite being on National Park Service property, it is privately owned.
Document 13: Carter's Tavern: Carter's Tavern is a historic inn and tavern located at Paces, Halifax County, Virginia. It dates to the late-18th and early-19th century and consists of a two-story, double-pile, side-hall-plan main frame section and an earlier 1 1/2-story frame wing on the west end. Both the main part and the wing are covered by gable roofs with simple box cornices. The building was thoroughly restored in 1972. Carter's Tavern remained in operation until 1843.
Document 14: Linville Falls Tavern: Linville Falls Tavern, now known as Famous Louise's Rock House Restaurant, is a historic tavern located at Linville Falls, Avery County and McDowell County, North Carolina. It was built in 1936, and is a 1 1/2-story, eight bay, native stone Rustic Revival-style building. It has a hipped roof with dormer and two stone chimneys.
Document 15: Lehew, West Virginia: Lehew is an unincorporated community in Hampshire County, West Virginia on the Virginia line. Lehew is located on Timber Ridge along West Virginia Route 259 at its crossroads with H.G. Brill Road (County Route 23/4) and White Pine Ridge Road (County Route 23/12).
ground_truth: Avery County
sub_queries: Lex, West Virginia >> located in the administrative territorial entity Answer: McDowell County
McDowell County >> shares border with Answer: Avery County