Santa Rosalía, Baja California Sur

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Santa Rosalía
Iglesia de Santa Barbara, Santa Rosalia, BCS, Mexico.jpg
The Iglesia de Santa Bárbara, designed by Gustave Eiffel
Mexico Baja California Sur location map.svg
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Santa Rosalía
Location in Mexico
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Santa Rosalía
Santa Rosalía (Mexico)
Coordinates: 27°20′20″N112°16′01″W / 27.33889°N 112.26694°W / 27.33889; -112.26694
CountryFlag of Mexico.svg  Mexico
State Baja California Sur
Municipality Mulegé
59 ft (18 m)
 (2015 [1] )
  Total14,160 [2]
Time zone UTC−7 (Pacific (US Mountain))
  Summer (DST) UTC−6 (Pacific)

Santa Rosalía (Spanish pronunciation:  [ˈsanta rosaˈli.a] ) is a town located in the Mulegé Municipality of northern Baja California Sur, Mexico. It is on the Gulf of California coast of the Baja California Peninsula. As of 2015, the town had a population of 14,160 inhabitants. [3] It was once a company town.

Mulegé Municipality Municipality in Baja California Sur, Mexico

Mulegé is the northernmost municipality of the Mexican state of Baja California Sur. It is the second-largest municipality by area in the country, with an area of 32,092.2 km². In the census of 2010 it had a population of 59,114 inhabitants. Isla Natividad is part of the municipality.

Baja California Sur State of Mexico

Baja California Sur, officially the Estado Libre y Soberano de Baja California Sur, is the second-smallest Mexican state by population and the 31st admitted state of the 31 states which, with Mexico City, make up the 32 Federal Entities of Mexico.

Mexico Country in the southern portion of North America

Mexico, officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Covering almost 2,000,000 square kilometers (770,000 sq mi), the nation is the fourth largest country in the Americas by total area and the 13th largest independent state in the world. With an estimated population of over 129 million people, Mexico is the tenth most populous country and the most populous Spanish-speaking country in the world, while being the second most populous nation in Latin America after Brazil. Mexico is a federation comprising 31 states plus Mexico City (CDMX), which is the capital city and its most populous city. Other metropolises in the country include Guadalajara, Monterrey, Puebla, Toluca, Tijuana, and León.



Santa Rosalía is a port city, and a regular ferry connects with Guaymas, Sonora, on the other side of the Gulf of California. At the Palo Verde Airport daily flights are available from Guaymas and twice a week from Hermosillo, Sonora. It is located along Mexican Federal Highway 1.

Guaymas city in Sonora, Mexico

Guaymas is a city in Guaymas Municipality, in the southwest part of the state of Sonora, in northwestern Mexico. The city is 134 km south of the state capital of Hermosillo, and 389 kilometres (242 mi) from the U.S. border. The municipality is located on the Gulf of California and the western edge of the Sonoran Desert and has a hot, dry climate and 117 km of beaches. The municipality’s formal name is Guaymas de Zaragoza and the city’s formal name is the Heróica Ciudad de Guaymas.

Sonora State of Mexico

Sonora, officially Estado Libre y Soberano de Sonora, is one of 31 states that, with Mexico City, comprise the 32 federal entities of United Mexican States. It is divided into 72 municipalities; the capital city is Hermosillo. Sonora is bordered by the states of Chihuahua to the east, Baja California to the northwest and Sinaloa to the south. To the north, it shares the U.S.–Mexico border primarily with the state of Arizona with a small length with New Mexico, and on the west has a significant share of the coastline of the Gulf of California.

Gulf of California A gulf of the Pacific Ocean between the Baja peninsula and the Mexican mainland

The Gulf of California is a marginal sea of the Pacific Ocean that separates the Baja California Peninsula from the Mexican mainland. It is bordered by the states of Baja California, Baja California Sur, Sonora, and Sinaloa with a coastline of approximately 4,000 km (2,500 mi). Rivers which flow into the Gulf of California include the Colorado, Fuerte, Mayo, Sinaloa, Sonora, and the Yaqui. The gulf's surface area is about 160,000 km2 (62,000 sq mi). Depths range from fording at the estuary near Yuma, Arizona, to in excess of 3,000 meters (9,800 ft) in the deepest parts.

Entrance to Santa Rosalia Santa-Rosalia-Entrance-Sign.jpg
Entrance to Santa Rosalía


The town was named after Saint Rosalia, although the reason for the name is not quite clear since the Misión de Santa Rosalía is not located by the town, but rather in Mulegé, about 100 km (62 mi) south, and the local parish is devoted to Santa Bárbara.

Saint Rosalia Italian saint

Saint Rosalia (1130–1166), also called La Santuzza or "The Little Saint", and in Sicilian as "Rusulia", is the patron saint of Palermo in Italy, and three towns in Venezuela: El Hatillo, Zuata, and Anzoátegui.

Santa Rosalía boasts French influence, particularly in its architecture. The French company El Boleo founded the town in 1884 and exploited copper mines there until they closed in 1954. They built houses and installed the metallic Iglesia de Santa Bárbara, which is argued to have been designed by Gustave Eiffel.

France Republic in Europe with several non-European regions

France, officially the French Republic, is a country whose territory consists of metropolitan France in Western Europe and several overseas regions and territories. The metropolitan area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is bordered by Belgium, Luxembourg and Germany to the northeast, Switzerland and Italy to the east, and Andorra and Spain to the south. The overseas territories include French Guiana in South America and several islands in the Atlantic, Pacific and Indian oceans. The country's 18 integral regions span a combined area of 643,801 square kilometres (248,573 sq mi) and a total population of 67.02 million. France is a unitary semi-presidential republic with its capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban areas include Lyon, Marseille, Toulouse, Bordeaux, Lille and Nice.

El Boleo is a copper-cobalt-zinc-manganese deposit located adjacent to the port city of Santa Rosalía, Baja California Sur in Mexico. It includes a historic open pit copper mine, as well as underground workings. Mining began in the 1860s, and continued, off and on, until the 1980s. The property is currently under development by a consortium of Korean companies led by Korea Resources Corporation. Preliminary underground mining began in 2012. The $1.75 Billion project is scheduled for completion in 2013.

Copper Chemical element with atomic number 29

Copper is a chemical element with the symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.

Unlike many other mining sites, the industrial facilities which are located in the very middle of the town, were never dismantled. Of particular interest are the reverberatory furnace and the metallurgical converter, although they are currently not accessible by the public due to safety concerns. Old locomotives, mining equipment and machinery are visible everywhere. The main mining company offices (La dirección) have been converted into an industrial museum.

Reverberatory furnace metallurgical furnace

A reverberatory furnace is a metallurgical or process furnace that isolates the material being processed from contact with the fuel, but not from contact with combustion gases. The term reverberation is used here in a generic sense of rebounding or reflecting, not in the acoustic sense of echoing.

Locomotive Railway vehicle

A locomotive or engine is a rail transport vehicle that provides the motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as multiple units, motor coaches, railcars or power cars; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight.


The 2015 census showed a population of 14,160 persons. [4] The city is the seat of the Mulegé Municipality.

Boleo Copper Mine

Boleite (dark blue) and atacamite (blue-green) in clay, a high-grade ore specimen from Boleo. Boleite-Atacamite-122984.jpg
Boleite (dark blue) and atacamite (blue-green) in clay, a high-grade ore specimen from Boleo.

The Boleo Mine is an unusual sediment-hosted copper-cobalt-zinc-manganese ore deposit. Seven large manto ore deposits have been identified. [5]

El Boleo was mined by Compagnie du Boleo, a French company, from 1885 until 1954. To prevent the economic collapse of Santa Rosalia and surrounding communities, a Mexican state-owned company (CMSRSA) assumed control and reopened the works using basically the same (rather archaic) equipment and process used by the French. The government funded operation was never profitable, and the mine was finally closed in the 1980s, when lower-grade ore and old technology made continued operation impractical.

Baja Mining, a Canadian firm, began intermittent exploration of the El Boleo mine and subsequently undertook an effort to reopen El Boleo. Baja Mining estimated that the property contains a resource of 534 million tons of ore, containing 0.59% Cu, 0.051% Co, and 0.63% Zn. Baja also hoped to produce byproduct manganese. [5] Baja Mining, in partnership with a Korean Consortium began developing the $1.6 Billion project in 2010. In 2012 however, construction cost overruns reported by Baja Mining threatened to halt or delay construction of the project. Majority ownership interest and control of the project was transferred to the Korean consortium, in return for funding the reported cost overruns. Construction continues, with mechanical completion and copper production targeted for early 2014. In January 26, 2015 Minera y Metalurgica del Boleo obtained its first copper production from the process of crushing, leaching, extracting and electrowinning in its mine-metallurgic project "El Boleo". [6]

Santa Rosalia Bay, Baja California Sur.jpg
100° panorama on the waterfront of Santa Rosalía, Baja California Sur


Due to its location in the warm Gulf waters, which are considerably warmer than Pacific waters in the winter, the town is the northernmost (and thus closest to the US border) year-round warm locale on the main peninsular highway. Nevertheless it's not much of a tourist town and sees few snowbirds.

Climate data for Santa Rosalía, Baja California Sur (1951–2010)
Record high °C (°F)34.0
Average high °C (°F)21.0
Daily mean °C (°F)16.5
Average low °C (°F)11.9
Record low °C (°F)3.5
Average precipitation mm (inches)8.3
Average precipitation days (≥ 0.1 mm)
Average relative humidity (%)60585550525558626258585557
Source: Servicio Meteorológico Nacional (humidity, 1981–2000) [7] [8] [9]


Historical population
1990 10,190    
1995 10,451+2.6%
2010 11,765    
2015 14,160+20.4%

See also

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  7. "Estado de Baja California Sur–Estacion: Santa Rosalia (DGE)". NORMALES CLIMATOLÓGICAS 1951–2010 (in Spanish). Servicio Meteorológico Nacional. Archived from the original on March 4, 2016. Retrieved February 9, 2016.
  8. "Extreme Temperatures and Precipitation for Santa Rosalia (DGE) 1929-2010" (in Spanish). Servicio Meteorológico Nacional. Retrieved February 9, 2016.
  9. "NORMALES CLIMATOLÓGICAS 1981–2000" (PDF) (in Spanish). Servicio Meteorológico Nacional. Retrieved February 9, 2016.
  10. "Archived copy". Archived from the original on 2014-09-15. Retrieved 2014-09-15.CS1 maint: archived copy as title (link)

Coordinates: 27°20′20″N112°16′01″W / 27.33889°N 112.26694°W / 27.33889; -112.26694