paragraph_text: Vilnius County () is the largest of the 10 counties of Lithuania, located in the east of the country around the city Vilnius. On 1 July 2010, the county administration was abolished, and since that date, Vilnius County remains as the territorial and statistical unit.

paragraph_text: Sandy Lake is an unincorporated community Native American village located in Turner Township, Aitkin County, Minnesota, United States. Its name in the Ojibwe language is "Gaa-mitaawangaagamaag", meaning "Place of the Sandy-shored Lake". The village is administrative center for the Sandy Lake Band of Mississippi Chippewa, though the administration of the Mille Lacs Indian Reservation, District II, is located in the nearby East Lake.

paragraph_text: The Shire of Kerang was a local government area located in northwestern Victoria, Australia, along the Murray River. The shire covered an area of , and existed from 1862 until 1995. From 1966 onwards, Kerang itself was managed by a separate entity; the Borough of Kerang.

paragraph_text: Oakland County International Airport is a county-owned public-use airport located in Waterford Township, Oakland County, Michigan, United States. The airport is located approximately 1 mile from the center of Waterford Township and Oakland County. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non primary commercial service facility.

paragraph_text: The ZEC Bras-Coupé-Desert is a "zone d'exploitation contrôlée" (controlled harvesting zone) (ZEC), located in the unorganized territory of Lac-Pythonga in La Vallée-de-la-Gatineau Regional County Municipality, in the administrative region of Outaouais, in Quebec, in Canada.

paragraph_text: Ap Lo Chun () is a small island in the New Territories of Hong Kong. It is located in Ap Chau Bay () between Ap Chau in the east and Sai Ap Chau in the west, with the islet of Ap Tan Pai nearby in the northeast. It is under the administration of North District.

paragraph_text: In 1949, the Territory and the Territory of New Guinea were established in an administrative union by the name of the Territory of Papua and New Guinea. That administrative union was renamed as Papua New Guinea in 1971. Notwithstanding that it was part of an administrative union, the Territory of Papua at all times retained a distinct legal status and identity; it was a Possession of the Crown whereas the Territory of New Guinea was initially a League of Nations mandate territory and subsequently a United Nations trust territory. This important legal and political distinction remained until the advent of the Independent State of Papua New Guinea in 1975.

paragraph_text: Wardville is a small unincorporated community in northern Atoka County, Oklahoma, United States, along State Highway 131 14 miles northeast of Coalgate, Oklahoma. The post office was established February 6, 1902 under the name Herbert, Oklahoma. Herbert was located in Atoka County, Choctaw Nation, a territorial-era entity which included portions of today's Atoka, Coal, Hughes and Pittsburg counties. The town was named after Herbert Ward, who was the youngest son of the towns first postmaster, Henry Pleasant Ward. The name of the town was changed to Wardville on July 18, 1907. Wardville was named for the before mentioned Henry Pleasant Ward, who served in the territorial House of Representatives and Senate and was an Atoka County judge. The Wardville Post Office closed in 2007.

paragraph_text: A union territory is a type of administrative division in the Republic of India. Unlike states, which have their own elected governments, union territories are ruled directly by the Union Government (central government), hence the name ``union territory ''. Union territories in India qualify as federal territories, by definition.

paragraph_text: Deninu School is a K-12 public school located in Fort Resolution, Northwest Territories, Canada. The school currently represents the only public education option for youth in the hamlet and serves a student population of approximately 125 students. The administration of the school is the responsibility of the South Slave Divisional Education Council (SSDEC).

paragraph_text: Khabarovsky District () is an administrative and municipal district (raion), one of the seventeen in Khabarovsk Krai, Russia. It consists of two unconnected segments separated by the territory of Amursky District, which are located in the southwest of the krai. The area of the district is . Its administrative center is the city of Khabarovsk (which is not administratively a part of the district). Population:

paragraph_text: Negaunee Township is a civil township of Marquette County in the U.S. state of Michigan. The population was 2,707 at the 2000 census. The City of Negaunee is located at the southwest corner of the township, but is administratively autonomous.

paragraph_text: 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.

paragraph_text: Kota Puteri is a new township in Selangor, Malaysia, developed by the PKNS. Kota Puteri falls under the administration of Majlis Perbandaran Selayang. This township is located near Batu Arang and Ijok, and is alternately known as "Bandar Baru Batu Arang". It is divided into 12 "sections".

paragraph_text: Badlands National Park (Lakota: Makȟóšiča) is a national park of the United States located in southwestern South Dakota. It protects 242,756 acres (379.306 sq mi; 98,240 ha) of sharply eroded buttes, pinnacles, and spires blended with the largest undisturbed mixed grass prairie in the United States. The park is managed by the National Park Service.

paragraph_text: Mount Franklin is a mountain with an elevation of in the Brindabella Ranges that is located on the border between the Australian Capital Territory and New South Wales, Australia. The summit of the mountain is located in the Australian Capital Territory.

paragraph_text: Riverdale Township is one of twenty-six townships in Buffalo County, Nebraska, United States. The population was 1,939 at the 2000 census. A 2006 estimate placed the township's population at 1,908.

paragraph_text: Paea is a commune in the suburbs of Papeete in French Polynesia, an overseas territory of France in the southern Pacific Ocean. Paea is located on the island of Tahiti, in the administrative subdivision of the Windward Islands, themselves part of the Society Islands. At the 2017 census it had a population of 13,021.

paragraph_text: Lutsel K'e Dene School is a K-12 public school located in Lutselk'e, Northwest Territories, Canada. The school currently represents the only public education option for youth in the settlement and serves a student population of approximately 73 students. The administration of the school is the responsibility of the South Slave Divisional Education Council (SSDEC).

paragraph_text: Local associations of a special kind are an amalgamation of one or more Landkreise with one or more Kreisfreie Städte to form a replacement of the aforementioned administrative entities at the district level. They are intended to implement simplification of administration at that level. Typically, a district-free city or town and its urban hinterland are grouped into such an association, or Kommunalverband besonderer Art. Such an organization requires the issuing of special laws by the governing state, since they are not covered by the normal administrative structure of the respective states.

Question: In what region of the state which contains the county that includes Riverdale Township are the badlands located?
Answer: southwestern South Dakota