paragraph_text: Goodings Grove was a census-designated place in northern Will County, Illinois, United States. The population was 17,084 at the 2000 census. It ceased to exist as an entity upon the incorporation of the village of Homer Glen, Illinois in 2001.

paragraph_text: Island Grove is an unincorporated community in Grove Township, Jasper County, Illinois, United States. Island Grove is located on County Route 12, north-northwest of Wheeler.

paragraph_text: The season follows the characters dealing with the aftermath of the season eight plane crash that claimed the life of Lexie Grey (Chyler Leigh) and upon rescue Mark Sloan (Eric Dane), who dies after sustaining injuries from the crash. Derek Shepherd (Patrick Dempsey) finds his surgical career in doubt after badly damaging his hand but Callie Torres (Sara Ramirez) ultimately manages to save his hand. The show's protagonist Meredith Grey (Ellen Pompeo) deals with the loss of her half - sister Lexie and later discovers that she is pregnant. Cristina Yang (Sandra Oh) who is severely traumatized upon rescue and later decides to take up her fellowship in Minnesota. Arizona Robbins (Jessica Capshaw) another survivor of the plane crash upon return realizes that her leg has to be amputated to save her life, reacts badly to this, becoming bitter and blaming her wife Callie and her former friend Alex Karev (Justin Chambers). To prevent the doctors' court case from being thrown out, Owen Hunt (Kevin McKidd) decides to divorce Yang, but the two agree to start again. The hospital itself becomes liable for the crash, putting its future in extreme doubt prompting the four crash survivors and Torres to purchase the hospital. Miranda Bailey (Chandra Wilson) marries her partner Ben Warren (Jason George), April Kepner (Sarah Drew) returns home to Ohio, but is brought back by Hunt to rejoin the hospital and she restarts her relationship with Jackson Avery (Jesse Williams).

paragraph_text: Walnut Shade is an unincorporated community in Taney County, Missouri, United States. It is located approximately six miles northwest of Forsyth on U.S. Route 160. The town sits at the confluence of Bull and Bear Creeks. Walnut Shade is part of the Branson, Missouri Micropolitan Statistical Area.

paragraph_text: The Redwood County Poor Farm (or Poorhouse) was a county run institution serving impoverished and aged people in Redwood Falls, Minnesota, United States, from 1884 to 1889 and again from 1909 to 1967, when it was converted to a nursing home.

paragraph_text: Olsztyn Voivodeship () was an administrative division and unit of local government in Poland in the years 1945-75, and a new territorial division between 1975–1998, superseded by Warmian-Masurian Voivodeship. Its capital city was Olsztyn.

paragraph_text: Orroral River, a perennial stream of the Murrumbidgee catchment within the Murray-Darling basin, is located in the Australian Capital Territory, Australia.

paragraph_text: The Gudgenby River, a perennial river that is part of the Murrumbidgee catchment within the Murray-Darling basin, is located in the Australian Capital Territory, Australia.

paragraph_text: Walnut Grove, Minnesota City U.S. Post Office, First State Bank Building, and water tower in Walnut Grove Location of Walnut Grove, Minnesota Coordinates: 44 ° 13 ′ 25 ''N 95 ° 28 ′ 8'' W ﻿ / ﻿ 44.22361 ° N 95.46889 ° W ﻿ / 44.22361; - 95.46889 Coordinates: 44 ° 13 ′ 25 ''N 95 ° 28 ′ 8'' W ﻿ / ﻿ 44.22361 ° N 95.46889 ° W ﻿ / 44.22361; - 95.46889 Country United States State Minnesota County Redwood Founded 1874 Incorporated 1879 Area Total 1.06 sq mi (2.75 km) Land 1.06 sq mi (2.75 km) Water 0 sq mi (0 km) Elevation 1,217 ft (371 m) Population (2010) Total 871 Estimate (2016) 813 Density 820 / sq mi (320 / km) Time zone Central (CST) (UTC - 6) Summer (DST) CDT (UTC - 5) ZIP code 56180 Area code (s) 507 FIPS code 27 - 67846 GNIS feature ID 0653743

paragraph_text: Inver Grove Heights is a city in Dakota County, Minnesota, United States. The population was 33,880 at the 2010 census. The city was formed on March 9, 1965, with the merger of the village of Inver Grove and Inver Grove Township.

paragraph_text: Baranya (, , / "Baranja", ) was an administrative county (comitatus) of the Kingdom of Hungary. Its territory is now in southern Hungary (the present county Baranya) and northeastern Croatia (part of the Osijek-Baranja county). The capital of the county was Pécs.

paragraph_text: While mentioned in passing throughout later seasons, Burke officially returns in the tenth season in order to conclude Cristina Yang's departure from the series.

paragraph_text: Jász-Nagykun-Szolnok was an administrative county (comitatus) in the Kingdom of Hungary. Its territory, which is now in central Hungary, was slightly smaller than that of present Jász-Nagykun-Szolnok county. The capital of the county was Szolnok.

paragraph_text: The Federal Capital Territory (FCT) was formed from New South Wales in 1911 to provide a location for the proposed new federal capital of Canberra (Melbourne was the seat of government from 1901 to 1927). The FCT was renamed the Australian Capital Territory (ACT) in 1938. The Northern Territory was transferred from the control of the South Australian government to the Commonwealth in 1911.

paragraph_text: Walnut Grove is a census-designated place (CDP) in Clark County, Washington, United States. The population was 9,790 at the 2010 census, up from 7,164 at the 2000 census.

paragraph_text: Walnut Grove is a city in Redwood County, Minnesota, United States. The population was 871 at the 2010 census. Another name formerly associated with the area is Walnut Station.

paragraph_text: The Biblioteca Ayacucho ("Ayacucho Library") is an editorial entity of the government of Venezuela, founded on September 10, 1974. It is managed by the "Fundación Biblioteca Ayacucho". Its name, "Ayacucho", comes from the intention to honor the definitive and crucial Battle of Ayacucho that took place December 9, 1824 between Spain and the territories of the Americas, prior to the full independence of the continent.

paragraph_text: Tatra County () is a unit of territorial administration and local government (powiat) in Lesser Poland Voivodeship, southern Poland, on the Slovak border. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Zakopane, which lies south of the regional capital Kraków. The county takes its name from the Tatra mountain range, which covers most of its territory.

paragraph_text: Braddon (postcode: 2612) is an inner north suburb of Canberra, Australian Capital Territory, Australia located adjacent to the Canberra CBD.

paragraph_text: Bogotá (/ ˈboʊɡətɑː /, / ˌbɒɡəˈtɑː /, / ˌboʊ - /; Spanish pronunciation: (boɣoˈta) (listen)), officially Bogotá, Distrito Capital, abbreviated Bogotá, D.C., and formerly known as Santafé de Bogotá between 1991 and 2000, is the capital and largest city of Colombia, administered as the Capital District, although often thought of as part of Cundinamarca. Bogotá is a territorial entity of the first order, with the same administrative status as the departments of Colombia. It is the political, economic, administrative, industrial, artistic, cultural, and sports center of the country.

Question: What is the seat of the county in which Walnut Grove, a city in the state where Christina Yang goes in season 9, is located?
Answer: Redwood Falls