BLACK MESA [#1] (BREWSTER COUNTY)
BLACK MESA [#1] (Brewster County). A second Black Mesa is about 6½ miles northeast of Lajitas in southwesternmost Brewster County (at 29°21' N, 103°43 W). The mesa, a mafic sill in Cretaceous sedimentary rocks, reaches an elevation of 4,286 feet above sea level near the center of its table-top. Mafic rocks are generally dark, hence the mesa's name. Owing to the low resistance of the sedimentary rocks and the near-horizontality of the sill, erosion has left a flat topographic high, or mesa. Black Mesa is covered sparsely with Chihuahuan Desert scrub, including scattered shrubs such as creosote bush and ocotillo, and various semisucculents such as lechuguilla, sotol, and yucca. After mining operations came into the area near the beginning of the twentieth century, Black Mesa marked the northwestern edge of the Terlingua quicksilver district (see MERCURY MINING). Both the Lone Star mine and the larger Marfa and Mariposa operation were located just south of Black Mesa.
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The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article.Handbook of Texas Online, "Black Mesa [#1] (Brewster County)," accessed March 30, 2017, http://www.tshaonline.org/handbook/online/articles/rjb40.
Uploaded on June 12, 2010. Published by the Texas State Historical Association.