Hidalgo County is the southernmost county of the U.S. state of New Mexico. As of the 2020 census, the population was 4,178. The county seat and largest city is Lordsburg. A bill creating Hidalgo from the southern part of Grant County was passed on February 25, 1919, taking effect at the beginning of 1920. The county was named for the town north of Mexico City where the Treaty of Guadalupe Hidalgo was signed, which in turn was named for Miguel Hidalgo y Costilla, the priest who is known as the "Father of Mexican Independence." The county is located on the Mexico–United States border.
Bisbee is a city in and the county seat of Cochise County in southeastern Arizona, United States. It is 92 miles (148 km) southeast of Tucson and 11 miles (18 km) north of the Mexican border. According to the 2020 census, the population of the town was 4,923, down from 5,575 in the 2010 census.
Douglas is a city in Cochise County, Arizona, United States that lies in the north-west to south-east running Sulphur Springs Valley. Douglas has a border crossing with Mexico at Agua Prieta and a history of mining.
Morenci is a census-designated place (CDP) and company town in Greenlee County, Arizona, United States, and was founded by the Detroit Copper Mining Company of Arizona. The population was 2000 at the 2000 census and 1,489 at the 2010 census. The biggest employer in Morenci and the owner of the town is Freeport-McMoRan, the owner of the Morenci Mine, the largest copper mining operation in North America, and one of the largest copper mines in the world. The town was a site of the Arizona Copper Mine Strike of 1983. The large open-pit mine is north of the town.
Ajo is an unincorporated community in Pima County, Arizona, United States. It is the closest community to Organ Pipe Cactus National Monument. The population was 3,304 at the 2010 census. Ajo is located on State Route 85 just 43 miles (69 km) from the Mexican border.
Bagdad is a copper mining community and census-designated place (CDP) in Yavapai County, Arizona, United States, in the western part of the state. It is one of only two remaining company towns in Arizona. The population was 1,876 at the 2010 census, up from 1,578 in 2000.
Dewey–Humboldt is a town in Yavapai County, Arizona, United States. The population of the town was 3,894 according to the 2010 census. The Dewey–Humboldt area was a census-designated place (CDP) at the 2000 census, at which time its population was 6,295.
McGill is a census-designated place (CDP) in White Pine County, Nevada, United States. The population was 1,148 at the 2010 census.
Silver City is a town in Grant County, New Mexico, United States. It is the county seat and the home of Western New Mexico University. As of the 2010 census the population was 10,315. As of the 2020 census, the population was 9,704.
The New Mexico Institute of Mining and Technology, formerly New Mexico School of Mines, is a public university in Socorro, New Mexico. It offers over 30 bachelor of science degrees in technology, the sciences, engineering, management, and technical communication, as well as graduate degrees at the masters and doctoral levels.
Phelps Dodge Corporation was an American mining company founded in 1834 as an import-export firm by Anson Greene Phelps and his two sons-in-law William Earle Dodge, Sr. and Daniel James. The latter two ran Phelps, James & Co., the part of the organization based in Liverpool, England. The import-export firm at first exported United States cotton from the Deep South to England and imported various metals to the US needed for industrialization. With the expansion of the Western frontier in North America, the corporation acquired mines and mining companies, including the Copper Queen Mine in Cochise County, Arizona and the Dawson, New Mexico coal mines. It operated its own mines and acquired railroads to carry its products. By the late 19th century, it was known as a mining company.
James Walter Douglas was a Canadian born mining engineer and businessman who introduced a number of metallurgical innovations in copper mining and amassed a fortune through the copper mining industry of Bisbee, Arizona Territory and Sonora before and after the turn of the 20th century.
Hoehne is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Las Animas County, Colorado, United States. The Hoehne post office has the ZIP Code 81046. At the United States Census 2020, the population of the Hoehne CDP was 80.
The Animas Mountains are a small mountain range in Hidalgo County, within the "Boot-Heel" region of far southwestern New Mexico, in the United States. They extend north–south for about 30 miles (50 km) along the Continental Divide, from near the town of Animas to a few miles north of the border with Mexico. The range is about 12 miles (20 km) wide at its widest. The highest point of the range is the southern summit of the mile-long Animas Peak massif, 8,565 feet (2,611 m). The Animas Mountains lie between the Animas Valley on the west and the Playas Valley on the east. Nearby ranges include the Peloncillo Mountains, across the Animas Valley, and the Big Hatchet and Little Hatchet Mountains, across the Playas Valley. Physiographically, the range divides into two parts. The compact southern part, which includes Animas Peak, is higher and wider, rising up to 4,000 ft above the nearby valleys. It has a sky island character, with dense coniferous forests at the higher elevations. The longer, narrow northern portion is lower, reaching only 7,310 ft at Gillespie Peak, and is characterized by grassland and piñon-juniper woods and shrubs. The Animas Mountains lie near the Chihuahuan Desert, the Sonoran Desert, the Sierra Madre Occidental of Mexico, and the mountains surrounding the headwaters of the Gila River. Biotic influences from these regions, as well as the more distant Rocky Mountains, give the southern portion of the range a great diversity of species, including "approximately 130 species of birds, 60 species of mammals, and 40 species of reptiles."
State Road 9 (NM 9) is a 109.154-mile-long (175.666 km) state road in the U.S. state of New Mexico. The highway spans Hidalgo, Grant, and Luna counties from its western terminus at NM 80 to its eastern terminus at CR A003 at the Doña Ana county line. NM 9 and NM 338 are the only remaining New Mexico State Roads to form a concurrency.
The New Cornelia mine is a currently inactive open-pit copper mine in Pima County, Arizona, United States. It was the only productive mine in the Ajo mining district, and is located just outside the town of Ajo, which was built as a company town to serve the New Cornelia mines. The roughly circular pit is one and a half miles across at its widest point, and 1,100 feet deep at the center. Although not generally regarded as a 'dam', the New Cornelia Mine Tailings is often cited as the largest dam structure in the United States with a volume of 7.4 billion cubic feet.
The El Paso and Southwestern Railroad began in 1888 as the Arizona and South Eastern Railroad, a short line serving copper mines in southern Arizona. Over the next few decades, it grew into a 1200-mile system that stretched from Tucumcari, New Mexico, southward to El Paso, Texas, and westward to Tucson, Arizona, with several branch lines, including one to Nacozari, Mexico. The railroad was bought by the Southern Pacific Railroad in 1924 and fully merged into its parent company in 1955. The EP&SW was a major link in the transcontinental route of the Golden State Limited.
The Detroit Copper Mining Company was an American copper mining and smelting operation based in Morenci, Arizona. Incorporated in July 1872, it existed as an independent company until 1897, when a controlling interest in the company was purchased by the predecessor of the Phelps Dodge Corporation. It continued to exist as a subsidiary of Phelps Dodge & Co until 1917, when all Phelps Dodge operations in the area were consolidated into the new Phelps Dodge Corporation, Morenci Branch.
Animas is an unincorporated community and census-designated place (CDP) in west-central Hidalgo County, New Mexico, United States, in the southwestern corner of the state. As of the 2010 census it had a population of 237.
The New Mexico Bootheel is a salient which comprises the southwestern corner of New Mexico. As part of the Gadsden Purchase it is bounded on the east by the Mexican state of Chihuahua along a line at 31°47′0″N108°12′30″W extending south to latitude 31°20′0″N at 31°20′0″N108°12′30″W. The southern border is shared between the Mexican states of Chihuahua and Sonora along latitude 31°20′0″N, while the western border with Arizona is along meridian 109°03′0″W at 31°20′0″N109°03′0″W, bounding an area of 50 by 30 miles and comprising 1,500 square miles (3,900 km2).
