Question: Which county border the county where Rapid City, South Dakota is located?

full_context: Document 1: Fort Meade National Cemetery: Fort Meade National Cemetery is a United States National Cemetery located near the city of Sturgis in Meade County, South Dakota. Administered by the United States Department of Veterans Affairs, it encompasses . It is maintained by Black Hills National Cemetery.
Document 2: Enning, South Dakota: Enning is an unincorporated community in Meade County, South Dakota, United States. The community sits at an elevation of and was named in honor of Anna Enning's land grant for a school. Although not tracked by the Census Bureau, Enning has been assigned the ZIP code of 57737.
Document 3: Rapid Creek (South Dakota): It rises in southwestern South Dakota, in the Black Hills National Forest in the Black Hills in Pennington County. It flows east, is joined by Castle Creek, past Silver City and through the Pactola Reservoir. Emerging from the Black Hills, it flows through Rapid City, past Farmingdale, and joins the Cheyenne River approximately 13 mi (21 km) southwest of Wasta.
Document 4: Watertown, South Dakota: Watertown is a city in and the county seat of Codington County, South Dakota, United States. Watertown is home to the Redlin Art Center which houses many of the original art works produced by Terry Redlin, one of America's most popular wildlife artists. Watertown is located between Pelican Lake and Lake Kampeska, which Redlin derived inspiration for his artwork.
Document 5: SoDak Con: SoDak Con formerly called SoDak Anime Convention, is an annual three-day anime convention held during May/June at the Rushmore Plaza Civic Center in Rapid City, South Dakota. The name of the convention comes from the state that the convention is located in, South Dakota.
Document 6: Dave Collins: Collins is one of three players to have made it to the major leagues who played for the Rapid City Post 22 American Legion baseball program in Rapid City, South Dakota. The other two are Kelvin Torve and Mark Ellis. All three were graduates of Stevens High School.
Document 7: Rushmore Plaza Civic Center: The Rushmore Plaza Civic Center is a exhibition center, in Rapid City, South Dakota. It contains two multi-purpose arenas (one with a permanent ice floor), a Fine Arts Theatre, two large convention/exhibit halls, and numerous other meeting rooms all under one roof. The grand opening event was a concert by Elvis Presley on June 21, 1977. That concert was filmed for a CBS television special that aired in October. The concert was during the singer's final tour before his death on August 16, 1977.
Document 8: Black Hills Corporation: Black Hills Corporation is a Rapid City, South Dakota diversified energy company that is an electric and gas utility in South Dakota and Wyoming and sells power throughout the American West.
Document 9: Corson, South Dakota: Corson is an unincorporated community in Brandon Township, Minnehaha County, South Dakota, United States with a population of 70. It lies immediately north of Interstate 90 and Brandon on South Dakota Highway 11. Once mainly a railroad and farming community, it is becoming an industrial area supporting the county. Sioux Falls is located twelve miles west-southwest of the community.
Document 10: Rapid City, South Dakota: Rapid City (Lakota: Mni Lúzahaŋ Otȟúŋwahe; ``Swift Water City '') is the second most populous city in South Dakota and the county seat of Pennington County. Named after Rapid Creek, on which the city is established, it is set against the eastern slope of the Black Hills mountain range. The population was 67,956 as of the 2010 Census.
Document 11: Corson County, South Dakota: The county is encompassed within the Standing Rock Indian Reservation, which extends into North Dakota. The Lakota people reside primarily in the South Dakota part of the reservation; the Yanktonai and Dakota live in that part in North Dakota. The Grand River, a tributary of the Missouri River, runs through the reservation.
Document 12: Buffalo County, South Dakota: In 2010, the center of population of South Dakota was located in eastern Buffalo County. The Crow Creek Indian Reservation, inhabited by the Crow Creek Sioux Tribe makes up the majority of Buffalo County.
Document 13: Canton, South Dakota: Canton is a city in and the county seat of Lincoln County, South Dakota, United States. Canton is located 20 minutes south of Sioux Falls in southeastern South Dakota. Canton is nestled in the rolling hills of the Sioux Valley, providing an abundance of recreational activities with the Big Sioux River bordering the eastern side, Newton Hills State Park to the south, and Lake Alvin to the north. The city was named by Norwegian settler and former legislator James M. Wahl. The population is estimated to be 3,430 as of 2017.
Document 14: Black Hills meridian: The Black Hills meridian, longitude 104°03′ west from Greenwich, with the baseline in latitude 44° north, is the principal meridian that governs surveys in the state of South Dakota north and west of White River, and west of the Missouri River (between latitudes 45°55′20″ and 44°1′30″), the north and west boundaries of the Lower Brule Indian Reservation, and the west boundary of range 79 west, of the Fifth Principal Meridian system. It is named for the Black Hills of South Dakota and Wyoming.
Document 15: List of people from Rapid City, South Dakota: The following is a list of people who were born in, residents of, or otherwise closely associated with Rapid City, South Dakota, and its surrounding metropolitan area, including Meade County, South Dakota, and Pennington County, South Dakota.
ground_truth: Meade County
sub_queries: what county is rapid city south dakota in Answer: Pennington County
Pennington County >> shares border with Answer: Meade County