Santa Rosalía, Baja California Sur

Coordinates: 27°20′20″N 112°16′01″W / 27.33889°N 112.26694°W / 27.33889; -112.26694
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Santa Rosalía
Top: view of Santa Rosalía from the Gulf of California; middle: Santa Bárbara Church (left) and Boleo Industrial Plant (right); bottom: view over the Harbor (left) and City Hall (right).
Santa Rosalía is located in Baja California Sur
Santa Rosalía
Santa Rosalía
Location in Mexico
Santa Rosalía is located in Mexico
Santa Rosalía
Santa Rosalía
Santa Rosalía (Mexico)
Coordinates: 27°20′20″N 112°16′01″W / 27.33889°N 112.26694°W / 27.33889; -112.26694
Country Mexico
StateBaja California Sur
MunicipalityMulegé
Elevation
59 ft (18 m)
Population
 (2020)
 • Total14,357
Time zoneUTC−7 (Pacific (US Mountain))
 • Summer (DST)UTC−6 (Pacific)

Santa Rosalía is a city and municipal seat of Mulegé Municipality, in Baja California Sur, situated along the Gulf of California. Located on the east coast of the Baja Peninsula, the town had a population of 14,357 inhabitants in 2020.[1] The city was founded as a company town by the French Compagnie du Boleo in 1884, which established the local copper mines. Today the city is a popular tourist destination.

History[edit]

Santa Bárbara Church was designed by famed French architect Gustave Eiffel for the 1889 Paris Exposition and brought to Mexico in 1897.
El Boleo copper mines in 1890.
View of the Compagnie du Boleo train monument.
French tropical architecture.

The town was named after Saint Rosalia, although the mission is not located by the town, but is in original location Mulegé, about 100 km (62 mi) south.

Santa Rosalía boasts French influence, particularly in its architecture. The French Compagnie du 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.

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, much preserved as ornate. The main mining company building (La dirección) have been reconverted into the city hall and its offices into an industrial museum.

El Boleo copper mines[edit]

The Boleo Mine is an unusual sediment-hosted copper-cobalt-zinc-manganese ore deposit. Seven large manto ore deposits have been identified.[2]

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.

Modern mining efforts[edit]

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.[2] 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. On 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".[3]

View of the harbor in the waterfront, December 2015

Geography[edit]

Tres Vírgenes.

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.

Climate[edit]

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)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 34.0
(93.2)
35.0
(95.0)
35.0
(95.0)
38.0
(100.4)
42.5
(108.5)
46.0
(114.8)
48.0
(118.4)
43.4
(110.1)
42.6
(108.7)
41.5
(106.7)
38.5
(101.3)
33.0
(91.4)
48.0
(118.4)
Mean daily maximum °C (°F) 21.0
(69.8)
22.2
(72.0)
24.5
(76.1)
27.5
(81.5)
30.3
(86.5)
33.6
(92.5)
35.4
(95.7)
35.6
(96.1)
34.9
(94.8)
31.6
(88.9)
26.1
(79.0)
21.7
(71.1)
28.7
(83.7)
Daily mean °C (°F) 16.5
(61.7)
17.3
(63.1)
19.2
(66.6)
21.8
(71.2)
24.6
(76.3)
28.2
(82.8)
30.4
(86.7)
30.8
(87.4)
30.0
(86.0)
26.6
(79.9)
21.4
(70.5)
17.4
(63.3)
23.7
(74.7)
Mean daily minimum °C (°F) 11.9
(53.4)
12.5
(54.5)
13.9
(57.0)
16.2
(61.2)
18.9
(66.0)
22.9
(73.2)
25.3
(77.5)
26.0
(78.8)
25.2
(77.4)
21.6
(70.9)
16.7
(62.1)
13.0
(55.4)
18.7
(65.7)
Record low °C (°F) 3.5
(38.3)
2.5
(36.5)
6.5
(43.7)
9.0
(48.2)
10.0
(50.0)
14.0
(57.2)
15.0
(59.0)
13.0
(55.4)
11.5
(52.7)
11.5
(52.7)
10.0
(50.0)
6.0
(42.8)
2.5
(36.5)
Average precipitation mm (inches) 8.3
(0.33)
7.2
(0.28)
2.0
(0.08)
0.1
(0.00)
0.1
(0.00)
0.0
(0.0)
5.5
(0.22)
22.9
(0.90)
22.9
(0.90)
13.6
(0.54)
5.5
(0.22)
9.9
(0.39)
98.0
(3.86)
Average precipitation days (≥ 0.1 mm) 1.0 0.8 0.3 0.1 0.1 0.1 0.8 1.5 1.5 0.8 0.6 1.2 8.8
Average relative humidity (%) 60 58 55 50 52 55 58 62 62 58 58 55 57
Source: Servicio Meteorológico Nacional (humidity, 1981–2000)[4][5][6]

Demographics[edit]

The 2020 census showed a population of 14,357 persons.[1]

The population was 10,190 in 1990.[7]

See also[edit]

References[edit]

  1. ^ a b 2020 Comondú Census
  2. ^ a b "Archived copy" (PDF). Archived from the original (PDF) on 2022-02-01. Retrieved 2022-02-01.{{cite web}}: CS1 maint: archived copy as title (link)
  3. ^ [1][dead link]
  4. ^ "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.
  5. ^ "Extreme Temperatures and Precipitation for Santa Rosalia (DGE) 1929-2010" (in Spanish). Servicio Meteorológico Nacional. Retrieved February 9, 2016.
  6. ^ "NORMALES CLIMATOLÓGICAS 1981–2000" (PDF) (in Spanish). Servicio Meteorológico Nacional. Retrieved February 9, 2016.
  7. ^ "Tabulados básicos - descarga". Archived from the original on 2014-09-15. Retrieved 2014-09-15.

External links[edit]

27°20′20″N 112°16′01″W / 27.33889°N 112.26694°W / 27.33889; -112.26694