Question: When did the state where Big Hatchet Peak is located become part of the US?

full_context: Document 1: Southwest Territory: The Territory South of the River Ohio, more commonly known as the Southwest Territory, was an organized incorporated territory of the United States that existed from May 26, 1790, until June 1, 1796, when it was admitted to the United States as the State of Tennessee. The Southwest Territory was created by the Southwest Ordinance from lands of the Washington District that had been ceded to the U.S. federal government by North Carolina. The territory's lone governor was William Blount.
Document 2: New Mexico: Inhabited by Native Americans for thousands of years before European exploration, it was colonized by the Spanish in 1598 as part of the Imperial Spanish viceroyalty of New Spain. It was named Nuevo México after the Aztec Valley of Mexico by Spanish settlers, 223 years before the establishment of the present - day country of Mexico. The present - day state of New Mexico was not named after, nor is it a part of, Mexico. Its geographic characteristics made settlement and effective political control difficult which prompted Mexico's invasion and control of the area from 1824 to 1846. New Mexico's Spanish origins made cultural integration with Mexico unsuitable, which sparked the Revolt of 1837 and a growing economic association with the expanding United States. The 1848 Mexican -- American War indirectly capitalized on this tension and created the U.S. New Mexico Territory. It was admitted to the Union as the 47th state on January 6, 1912.
Document 3: Dakota Territory: The Territory of Dakota was an organized incorporated territory of the United States that existed from March 2, 1861, until November 2, 1889, when the final extent of the reduced territory was split and admitted to the Union as the states of North and South Dakota.
Document 4: New Mexico: Inhabited by Native Americans for thousands of years before European exploration, it was colonized by the Spanish in 1598 as part of the Imperial Spanish viceroyalty of New Spain. In 1563, it was named Nuevo México after the Aztec Valley of Mexico by Spanish settlers, 223 years before the establishment and naming of the present - day country of Mexico; thus, the present - day state of New Mexico was not named after the country today known as Mexico. Its geographic characteristics made settlement and effective political control difficult which prompted Mexico's invasion and control of the area from 1824 to 1846. New Mexico's Spanish origins made cultural integration with Mexico unsuitable, which sparked the Revolt of 1837 and a growing economic association with the expanding United States. The 1848 Mexican -- American War indirectly capitalized on this tension and created the U.S. New Mexico Territory. It was admitted to the Union as the 47th state on January 6, 1912.
Document 5: Florida Territory: The Territory of Florida was an organized incorporated territory of the United States that existed from March 30, 1822, until March 3, 1845, when it was admitted to the Union as the State of Florida. Originally the Spanish territory of La Florida, and later the provinces of East and West Florida, it was ceded to the United States as part of the 1819 Adams -- Onís Treaty. It was governed by the Florida Territorial Council.
Document 6: Chihuahua (state): Although Chihuahua is primarily identified with the Chihuahuan Desert for namesake, it has more forests than any other state in Mexico, with the exception of Durango. Due to its variant climate, the state has a large variety of fauna and flora. The state is mostly characterized by rugged mountainous terrain and wide river valleys. The Sierra Madre Occidental mountain range, an extension of the Rocky Mountains, dominates the state's terrain and is home to the state's greatest attraction, Las Barrancas del Cobre, or Copper Canyon, a canyon system larger and deeper than the Grand Canyon. On the slope of the Sierra Madre Occidental mountains (around the regions of Casas Grandes, Cuauhtémoc and Parral), there are vast prairies of short yellow grass, the source of the bulk of the state's agricultural production. Most of the inhabitants live along the Rio Grande Valley and the Conchos River Valley.
Document 7: Cerro Pedernal: Cerro Pedernal, locally known as just "Pedernal", is a narrow mesa in northern New Mexico. The name is Spanish for "flint hill". The mesa lies on the north flank of the Jemez Mountains, south of Abiquiu Lake, in the Coyote Ranger District of the Santa Fe National Forest. Its caprock was produced in the Jemez Volcanic Field. Its highest point is 9,862 feet (3,006 meters).
Document 8: Brazos Mountains: The Brazos Mountains is a range in far northern Rio Arriba County, in northern New Mexico in the southwestern United States. The range is part of the southern portion of the San Juan Mountains which are more well known in Colorado. A high crest runs from the border with Colorado for over in a south-southeasterly direction. The high point of the range at is on Grouse Mesa,
Document 9: Santa Fe Baldy: Santa Fe Baldy is a prominent summit in the Sangre de Cristo Mountains of New Mexico, United States, located 15 mi (24 km) northeast of Santa Fe. There are no higher mountains in New Mexico south of Santa Fe Baldy. It is prominent as seen from Los Alamos and communities along the Rio Grande in northern New Mexico, but is relatively inconspicuous from Santa Fe, as its north-south trending main ridge line is seen nearly end-on, disguising the size of the mountain. Tree line in the Sangre de Cristos is unusually high (exceeding in places) and only the top of the mountain is perpetually free of trees, but several severe forest fires have created bare spots extending to lower elevations. An extensive region of aspen trees on its flanks produces spectacular orange-yellow coloration during the fall that is the subject of many photographic studies.
Document 10: Big Hatchet Peak: Big Hatchet Peak is the high point of the Big Hatchet Mountains, a small but rugged range in the southwest corner (the "Bootheel") of New Mexico, in the United States. The mountains are located in southeast Hidalgo County, about southwest of Deming. The range runs roughly northwest-southeast, and is about long; the southeastern edge of the range is within of the border with Mexico. They lie primarily on BLM land.
Document 11: New Mexico Territory: The Territory of New Mexico was an organized incorporated territory of the United States that existed (with varying boundaries) from September 9, 1850, until January 6, 1912, when the remaining extent of the territory was admitted to the Union as the State of New Mexico, making it the longest - lived organized incorporated territory of the United States, lasting approximately 62 years.
Document 12: Big Bend National Park: Big Bend National Park The Rio Grande runs through Cañón de Santa Elena - Mexico on the left and Big Bend National Park, U.S. on the right Country United States State Texas Region Chihuahuan Desert City Alpine (nearest) River Rio Grande Location Brewster County, Texas - coordinates 29 ° 15 ′ 0 ''N 103 ° 15 ′ 0'' W ﻿ / ﻿ 29.25000 ° N 103.25000 ° W ﻿ / 29.25000; - 103.25000 Coordinates: 29 ° 15 ′ 0 ''N 103 ° 15 ′ 0'' W ﻿ / ﻿ 29.25000 ° N 103.25000 ° W ﻿ / 29.25000; - 103.25000 Highest point - location Emory Peak, Chisos Mountains - elevation 7,832 ft (2,387 m) Lowest point - location Rio Grande - elevation 1,800 ft (549 m) Area 801,163 acres (324,219 ha) Founded June 12, 1944 Management National Park Service Visitation 388,290 (2016) IUCN category II - National Park Show map of Texas Show map of the US Show all Website: Big Bend National Park
Document 13: Utah Territory: The Territory of Utah was an organized incorporated territory of the United States that existed from September 9, 1850, until January 4, 1896, when the final extent of the territory was admitted to the Union as the State of Utah, the 45th state.
Document 14: Mexican Hat, Utah: Mexican Hat is a census-designated place (CDP) on the San Juan River on the northern edge of the Navajo Nations borders in south-central San Juan County, Utah, United States. The population was 31 at the 2010 census, a sharp decline from the previous two censuses.
Document 15: Antelope Wells, New Mexico: Antelope Wells is a small unincorporated community in Hidalgo County, New Mexico, United States. The community is located along the Mexico – United States border, in the New Mexico Bootheel region, located across the border from the small settlement of El Berrendo, Chihuahua, Mexico. Despite its name, there are neither antelope nor wells in the area. The name comes from an old ranch, located north of the current community. The only inhabitants of the community are United States Customs and Border Protection employees.
ground_truth: January 6, 1912
sub_queries: Which state is Big Hatchet Peak located? Answer: New Mexico
when did New Mexico become part of the us Answer: January 6, 1912