
Tercio is a
ghost town
Ghost Town(s) or Ghosttown may refer to:
* Ghost town, a town that has been abandoned
Film and television
* ''Ghost Town'' (1936 film), an American Western film by Harry L. Fraser
* ''Ghost Town'' (1956 film), an American Western film by All ...
and former
coal mine
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron fro ...
in
Las Animas County, in the
U.S. state of
Colorado
Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
. The
GNIS
The Geographic Names Information System (GNIS) is a database of name and locative information about more than two million physical and cultural features throughout the United States and its territories, Antarctica, and the associated states of ...
classifies it as a populated place. A post office called Tercio was established in 1902, and remained in operation until 1949. The community was the third (Spanish: ''tercio'')
coal mining
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from ...
community established by the
Colorado Fuel and Iron company, hence the name.
Geography

Tercio consists of an abandoned coal mine and the meager remains of a
company town near the headwaters of the South Fork of the
Purgatoire River about from the border with
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe, New Mexico, Santa Fe
, LargestCity = Albuquerque, New Mexico, Albuquerque
, LargestMetro = Albuquerque metropolitan area, Tiguex
, Offi ...
. The mine and settlement are in the foothills of the
Culebra Range of the
Sangre de Cristo Mountains
The Sangre de Cristo Mountains ( Spanish for "Blood of Christ") are the southernmost subrange of the Rocky Mountains. They are located in southern Colorado and northern New Mexico in the United States. The mountains run from Poncha Pass in South ...
at an elevation of . Tercio is in the
Raton Basin and was one of many coal-mining communities created in the Basin during the late 19th and early 20th century. An author said, "Of all the coal mining camps scattered throughout southern Colorado, Tercio probably had the most picturesque location. On three sides the site is cradled by low lying, thickly-wooded hills...
o the westthe Sangre de Cristos push skyward in misty rows of cracked escarpments."
History

Prior to the arrival of the coal miners, the valley of the South Fork of the Purgatoire River was sparsely inhabited by
Hispanics
The term ''Hispanic'' ( es, hispano) refers to people, cultures, or countries related to Spain, the Spanish language, or Hispanidad.
The term commonly applies to countries with a cultural and historical link to Spain and to viceroyalties forme ...
in settlements known as
Torres and Rincon. The
Colorado Fuel and Iron company established Tercio in 1901 and in 1902 the Tercio mine produced its first coal. The Colorado Supply
Company Store
A company, abbreviated as co., is a legal entity representing an association of people, whether natural, legal or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specific, declared ...
opened on 3 December 1901. The
Colorado and Wyoming Railway company extended its line to Tercio in 1902. Coal mined near Tercio was used mostly to produce
coke which was transported by rail to
Pueblo, Colorado
Pueblo () is a home rule municipality that is the county seat and the most populous municipality of Pueblo County, Colorado, United States. The city population was 111,876 at the 2020 United States Census, making Pueblo the ninth most popu ...
to be used in the Colorado Fuel and Iron steel mill.
By August 1902 Tercio was a company town with 100 houses for employees and expanding rapidly. By 1910 the Tercio coal industry employed 1,000 men and the town itself had a population of 300 families. In 1913, however, the coking operation began to decline. The mine closed in 1915, but coking continued until 1918. The company store continued in operation until 1949. The large building housing the store is the only major structure in Tercio still existing in the 21st century.
Two additional coal mines were located near Tercio: Cuatro (Spanish "four"), west and Cornell, northwest. Cuatro operated from 1902 to 1907. Cornell operated from 1908 to 1911. The production of the three mines during their lifetimes was: Tercio, 1,533,463 tons; Cuatro, 273,855 tons; and Cornell, 509 tons.
Mining disasters. On 28 October 1904, 19 men were killed by an explosion of coal dust in the Tercio mine.
Press reports said that only two of the 19 killed were Americans and the others were "Slavs and Mexicans." The workers at Tercio and other mines in southern Colorado were mostly foreign-born, especially from southern and eastern Europe, and lumped together as "Slavs."
On 22 April 1906 a gas explosion at the Cuatro Mine killed nineteen workers.
Conservation. In 2013, businessman
Lloyd Bacon
Lloyd Francis Bacon (December 4, 1889 – November 15, 1955) was an American screen, stage and vaudeville actor and film director. As a director he made films in virtually all genres, including westerns, musicals, comedies, gangster films, an ...
announced the establishment of a perpetual
conservation easement
In the United States, a conservation easement (also called conservation covenant, conservation restriction or conservation servitude) is a power invested in a qualified private land conservation organization (often called a " land trust") or gov ...
of of land on the Tercio and Red River ranches owned by Bacon.
Notable person
*
Agnes Smedley
Agnes Smedley (February 23, 1892 – May 6, 1950) was an American journalist, writer, and activist who supported the Indian Independence Movement and the Chinese Communist Revolution. Raised in a poverty-stricken miner's family in Missouri and Co ...
, a journalist, feminist, and socialist, attended school in Tercio in 1908. Finishing 8th grade in Tercio, Smedley passed an examination to become a school teacher at age 17.
References
{{coord, 37, 03, 07, N, 104, 59, 48, W, type:city_region:US-CO_source:GNIS-enwiki, display=title
Ghost towns in Colorado
Geography of Las Animas County, Colorado
Coal mining
Coal mining disasters in Colorado
Coal mines in the United States