St. Michael's Mission is an Episcopal church mission established about 1887 in Fremont County, Wyoming to minister to the Arapaho and Shoshone of the Wind River Indian Reservation.
 It was founded by Reverend John Roberts with the permission of Shoshone Chief Washakie.
 The community of Ethete grew around the mission, given its name by Washakie's assent in the Shoshone language, "ethete" ("good" or "OK").
 In 1900 a small log church was built about 3 mi from the present location.
 In 1910 the mission received an endowment from Mrs. Baird Cooper and the new site was developed over the next seven years.
 In 1920 the original church was moved to the mission, enlarged, and named "The Church of Our Father's House.
Mission San Buenaventura is a Spanish mission founded by the Franciscans in present-day Ventura, California.
 Founded on March 31, 1782, it was the ninth Spanish mission established in California and the last to be established by Father Junípero Serra.
 The mission was named after Saint Bonaventure, a 13th century Franciscan saint and Doctor of the Church.
 The mission is located in the historic downtown of Ventura.
The Nisqually Mission was a branch of the Methodist Mission, the only one established north of the Columbia River, outside Fort Nisqually in modern DuPont, Washington, United States.
 The station was actively used for two years, from 1840 to 1842, until its missionary John P. Richmond returned to the United States of America.
DuPont is a city in Pierce County, Washington, United States.
 The population was 8,199 at the 2010 census.
Mission San Antonio de Padua is a Spanish mission established by the Franciscan order in present-day Monterey County, California, near the present-day town of Jolon.
 It was founded on July 14, 1771, and was the third mission founded in Alta California by Father Presidente Junípero Serra.
 The mission was also the site of the first Christian marriage and the first use of fired-tile roofing in Upper California.
 Today the mission is a parish church of the Diocese of Monterey.
Mission San José is a Spanish mission located in the present-day city of Fremont, California.
 It was founded on June 11, 1797, by the Franciscan order and was the fourteenth Spanish mission established in California.
 The mission is the namesake of the Mission San José district of Fremont, which was an independent town subsumed into the city when it was incorporated in 1957.
The St. Ignace Mission is located in a municipal park known as Marquette Mission Park.
 It was the site of a mission established by Père Jacques Marquette, and the site of his grave in 1677.
 A second mission was established at a different site in 1837, and the chapel was moved here in 1954.
 The second mission chapel is the oldest Catholic church in Michigan and Wisconsin.
 The St. Ignace Mission was designated a Michigan State Historic Site in 1956, and was declared a U.S. National Historic Landmarks in 1960, one of the earliest sites recognized.
 The mission chapel serves as the Museum of Ojibwa Culture.
Mission San Francisco de la Espada (also Mission Espada) is a Roman Rite Catholic mission established in 1690 by Spain in present-day San Antonio, Texas, in what was then known as northern New Spain.
 The mission was built in order to convert local Native Americans to Christianity and solidify Spanish territorial claims in the New World against encroachment from France.
 Today, the structure is one of four missions that comprise San Antonio Missions National Historical Park.
The United Nations Mission of Observers in Tajikistan (UNMOT) was a peacekeeping mission established by the United Nations Security Council in December 1994 and extended on several occasions until its mandate expired in May 2000.
 Its purpose was to monitor peace agreements during and after the Tajikistan Civil War.
 The observers were first deployed in the wake of the ceasefire, in 1994, between the ruling government of Tajikistan, led by Emomali Rahmonov, and the United Tajik Opposition.
 After the UN-sponsored armistice ended the war in 1997, the UN expanded the mission's original mandate to monitor the peace and demobilization.
 The mission was headquartered in Dushanbe, Tajikistan.
Skylab 2 (also SL-2 and SLM-1) was the first manned mission to Skylab, the first U.S. orbital space station.
 The mission was launched on a Saturn IB rocket and carried a three-person crew to the station.
 The name Skylab 2 also refers to the vehicle used for that mission.
 The Skylab 2 mission established a twenty-eight-day record for human spaceflight duration.
 Furthermore, its crew were the first space station occupants ever to return safely to Earth – the only previous space station occupants, the crew of the 1971 Soyuz 11 mission that had manned the Salyut 1 station for twenty-four days, were killed during reentry.

Question: What county in Washington was the Nisqually Mission established?
Answer: Pierce County