In 1990 Southwestern acquired
AT&SF trackage north and west of Whitewater, New Mexico serving the
Phelps Dodge open-pit copper mines at
Chino and
Tyrone, and the smelter at
Hurley. In 1994 an additional 27 miles of line from Whitewater to Peruhill was acquired from the A&TSF, and the Santa Fe’s former Deming Subdivision (60 miles from
Rincon to
Deming and Peruhill) was acquired from BNSF in 2001. The division’s headquarters are at Deming. Southwestern's primary traffic on this division is
copper-related: ore from the mines to adjacent
concentrators, and outbound loads of copper
anodes,
cathodes, and
sulfuric acid (a by-product of the refining process) for transhipment via the BNSF at Rincon or the
Union Pacific at Deming. Until 2004 loads of copper ore were transported from the mines to the Hurley smelter, which closed in that year.
BNSF also traverses the Rincon to Deming line under
trackage rights.
History By late 1880, the Rio Grande, Mexico and Pacific Railroad (an AT&SF subsidiary) was building a line down the
Rio Grande valley toward
El Paso. At
Rincon the line was split, with a branch going southwest toward Deming, with the goal of joining to the
Southern Pacific, which was under construction from the west. The two railroads connected at Deming on March 8, 1881, with the driving of a silver spike to mark the creation of the United States’
second transcontinental railroad. The railroad line northwest from Deming, and its branches above Whitewater, was developed in several stages to serve mines in the vicinity of
Silver City: A 47-mile
narrow-gauge railroad, the Silver City, Deming and Pacific Railroad, reached Silver City from Deming in March 1883. Within a year it was acquired by the Santa Fe, which converted the 3-foot gauge line to standard gauge by May 1886. In 1891 the Silver City and Northern Railroad was built north from Whitewater through Hurley to San Jose (now Hanover Junction), a total of 14 miles. The Santa Fe acquired this line in 1898 and extended it another 4 miles to
Santa Rita. The line struggled until 1910 when the Chino Copper Company acquired the copper resources, with sufficient financial backing to develop the open pit Chino mine, and also build the smelter at Hurley. The 13-mile Burro Mountain Railroad was constructed in 1913, westward from Burro Mountain Junction to the new mining town of Tyrone. Copper prices plummeted after the First World War, making the low-grade ore at this location uneconomical to process, but the railroad struggled on until 1934 when it finally closed and the tracks were removed. Phelps Dodge restarted mining in the late sixties, but this time as an open pit and with new metallurgical techniques for refining. PD rebuilt the old railroad, which opened in 1967, mostly on the old BMRR grade. AT&SF operated this line as an industrial spur. The Silver City branch north of Burro Mountain Junction was closed in 1983 and the 12.6 miles of track removed. ==Carlsbad Division==