Question: What was the original name of the county where Mike Horse, Montana is located?

Context paragraphs:
Gyeongheo: Kyong Ho Seonsa (Korean: 경허선사, Hanja: 鏡虛禪師, 1849—1912) was a famous Korea Sŏn master, and the 75th Patriarch of Korean Sŏn.  His original name was Song Tonguk; and his dharma name was Sŏng’u.  He is known as the reviver of modern Korean Sŏn Buddhism.  Song Tonguk was born in southern Korea (Chŏnju, Chŏlla province), and entered the sangha at the age of nine in 1857.  He ordained at Ch'ŏnggye monastery located at Kwach’ŏn, in the Kyŏnggi province.  The young monk studied under the tutelage of Kyehŏ–sŏnsa.  When he was 14, in 1862, Kyehŏ–sŏnsa disrobed and sent Kyŏnghŏ–sŏnsa to Manhwa–sŏnsa for further study at Tonghak–sa.  Kyŏnghŏ soon distinguished himself as a sūtra-lecturer grew until a dramatic incident took place in 1879 while Kyŏnghŏ was travelling to Seoul to meet his previous teacher Kyehŏ–sŏnsa.  On the way he entered a village looking for shelter from a rainstorm and discovered that the entire inhabitants of the village had died from an epidemic.  Kyŏnghŏ came to understand that his knowledge of Buddhist sūtras did not help him in the issues of life and death.  When Kyŏnghŏ returned to his monastery, he summarily dismissed all of his students, and began serious Sŏn meditation practice.  The kongan he worked with was Master Lingyun’s (771-853) “The donkey is not yet done and the horse has already arrived.”  He understood his kongan when he was reading, “Even though I should become a cow, there will be no nostrils.”  Kyŏnghŏ attained enlightenment on November 15, 1887.  After his awakening, Kyŏnghŏ wrote:

Roman Catholic Diocese of Great Falls–Billings: The Diocese of Great Falls–Billings (Latin: "Dioecesis Magnocataractensis–Billingensis" ) is one of two Catholic dioceses in the U.S. state of Montana in the United States.  The diocese was established in 1904, and originally constituted the eastern half of the Diocese of Helena.  The see was originally located only in the city of Great Falls, Montana, from which the diocese drew its original name.  In 1980, the diocese's name was changed to reflect its new co-see in the city of Billings, Montana.

Noriker: The Noriker horse, also called the Norico-Pinzgauer and historically known as the Pinzgauer horse, is a moderately heavy Austrian draught horse breed.  The Noriker is considered indigenous to the central Alpine region of Europe, and is believed to have originated around the highest mountain of Austria, the Grossglockner.  This region was once known as the Roman province of Noricum.  At the end of the 19th century the original name Pinzgauer horse was changed to Noriker horse, due in part to the Romanophile attitude in this time.

Mike Horse, Montana: Mike Horse is an extinct town in Lewis and Clark County, Montana.

Hungry Horse Dam: Hungry Horse Dam is an arch dam on the South Fork Flathead River in the Rocky Mountains of the U.S. state of Montana.  It is located in Flathead National Forest, in Flathead County, about 15 mi south of the west entrance to Glacier National Park, 9 mi southeast of Columbia Falls, and 20 mi northeast of Kalispell.  The Hungry Horse project, dam, and powerplant are operated by the United States Bureau of Reclamation.  The entrance road leading to the dam is located in Hungry Horse, Montana.

Lewis and Clark County, Montana: Lewis and Clark County is a county located in the U.S. state of Montana.  As of the 2010 census, the population was 63,395.  Its county seat is Helena, the state capital.  The numerical designation for Lewis and Clark County (used in the issuance of the state's license plates) is 5.  The county was established in 1865 as Edgerton County, and was renamed "Lewis and Clark County" two years later.  The present name was given in honor of explorers Lewis and Clark.

Kayak II: Kayak II (1935 – November 19??)  was an Argentine-bred thoroughbred racehorse who competed successfully in the United States.  He was sired by a famous Argentine thoroughbred named Congreve out of the dam Mosquita.  After being seen by American Lindsay Howard during a polo trip to Argentina, Kayak was purchased for $7,000 along with another horse named Ligaroti.  The horses were shipped back to California, where Howard's father, businessman Charles S. Howard, owned a successful racing stable that included 1938 U.S. Horse of the Year Seabiscuit.  Lin Howard and his partner in Binglin Stable, singer Bing Crosby, raced Ligaroti, while Charles Howard raced Kayak.  His original name was Kajak; Howard, however, renamed him.  To avoid a conflict of names, the horse had to be registered in the U.S. as Kayak II.

Raj Montana Band: Raj Montana Band is a famous Swedish pop and rock band that also served as a backing band for Swedish singers Dan Hylander and Py Bäckman.  The name derives from the band's original name, Ray Montana and his Moonlight Boys.  The band dissolved in 1985 but was resurrected in 1997 for a series of reunion tours and a compilation album of earlier hits.

Vineland, Florida: Vineland is an unincorporated community in southwest Orange County, Florida, United States, located just north of Interstate 4 along State Road 535 and continues along County Road 435, which is South Apopka Vineland Road.  The name is no longer often used since the more well-known City of Lake Buena Vista lies just to the south and west.  Orange County officially calls the area Buena Vista North or Orange Center, its original name.  Mailing addresses for residents in the area are typically Orlando, Florida except many businesses in the area use Lake Buena Vista as their address.  The area is most famous due to the name appearing on a large number of major Orange County roads, including Apopka-Vineland Road, Winter Garden-Vineland Road, Kissimmee-Vineland Road and Taft-Vineland Road.  There was also a small town which was abandoned in the 1960s called Vineland.  An ACL Railway Depot, Housing, a schoolhouse, a church, the Vineland Cemetery, and many more community facilities were a part of the original town.  These roads begin/terminate in the area known as Vineland and Lake Buena Vista, Florida.

Anti Horse Thief Association: The Anti Horse Thief Association was a vigilance committee, organized at Fort Scott, Kansas, in 1859 to provide protection against marauders thriving on border warfare.  It resembled other vigilance societies in organization and methods, though did not share some of the shadier tactics of some other vigilance committees and members of the regulator movement.  It achieved great success in apprehending offenders over a wide area.  Though it initially focused on horse theft it diversified into other areas while still retaining the original name.

Supporting paragraphs: Mike Horse, Montana Lewis and Clark County, Montana
Answer: Edgerton County