Chihuahuan Desert Research Institute
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The Chihuahuan Desert Research Institute or CDRI, incorporated in December 1973, is an independent non-profit, scientific and educational organization conducting its operations as a multi-featured Nature Center and Botanical Gardens located on a tract in the foothills of the
Davis Mountains The Davis Mountains, originally known as Limpia Mountains, are a range of mountains in West Texas, located near Fort Davis, after which they are named. The fort was named for then United States Secretary of War and later Confederate President J ...
. The organization's mission is to promote public awareness, appreciation, and concern for nature generally and the natural diversity of the
Chihuahuan Desert The Chihuahuan Desert ( es, Desierto de Chihuahua, ) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States. It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lo ...
region specifically through education, the visitor experience, and through the support of research. Its original principal founders were Science professors at
Sul Ross State University Sul Ross State University (SRSU) is a public university in Alpine, Texas. The main campus is the primary institution of higher education serving the nineteen-county Big Bend region of far West Texas. Branch campuses, branded as Rio Grande Colle ...
, a university that the institute continues to work closely with, as well as a variety of other TEA Region 18 public schools, grades Pre-K through 12, regional colleges and universities, and other non-profit organizations. Since 2018, Lisa Fargason Gordon has served as the Executive Director, working with a small team of employees, along with many members, volunteers, and board members.


History

From its inception in December 1973 to 1983, the Institute was housed in the Centennial School Building in
Alpine, Texas Alpine ( ) is a city in and the county seat of Brewster County, Texas, United States. The population was 5,905 at the 2010 census. The town has an elevation of , and the surrounding mountain peaks are over above sea level. The university, hosp ...
. The Alpine Independent School District generously leased the facility to CDRI at the rate of $1.00 per year. In 1983, Centennial School was sold and the CDRI moved to Honors Hall on the campus of Sul Ross State University. While headquartered on the Sul Ross State University campus, the Institute conducted its activities from Honors Hall (1983-1991), and later from the Barton Warnock Science Building (1991-1997).


Education and Outreach

CDRI publishes a monthly newsletter which is distributed by e-mail, ''The Desert Newsflash'' which is distributed to nearly 5,000 recipients who sign up. Several years ago, CDRI staff helped write a weekly radio program, "''Nature Notes''", which aired on KRTS, the
National Public Radio National Public Radio (NPR, stylized in all lowercase) is an American privately and state funded nonprofit media organization headquartered in Washington, D.C., with its NPR West headquarters in Culver City, California. It differs from other ...
affiliate in
Marfa, Texas Marfa is a city in the high desert of the Trans-Pecos in far West Texas, between the Davis Mountains and Big Bend National Park. It is the county seat of Presidio County, and its population as of the 2010 United States Census was 1,981. The cit ...
. To extend its goal of research and education to the
geology Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Ea ...
of the Desert, CDRI installed a geological exhibit on the highest point of the Institute’s site, named Clayton's Overlook. The exhibit allows for the disassembly of the 360° panorama presented by its mountain top location into eight individual views and provides a focal point for their re-assembly and integration as a visual representation, study, and explanation of the geology which controls that panorama. The display first focuses on the immediate area, where three
igneous Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or ...
cored domes (diameters: 3 – 4 km) and other associated intrusions, including the igneous stock on which the pavilion itself sits, are well exposed. These domes are thought to be cored by
laccolith A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying apar ...
s. The topography of the domes is variable, as is the degree of exposure of the actual intrusions; in fact, the only exposure of the intrusion coring one of the domes is on a fault located along its north edge (trap door laccolith?). The thrust of the display relates the view of the domes from the pavilion to the view presented in maps and cross sections, as well as the view presented by satellite images. Other displays at the pavilion take advantage of broader views of the Davis Mountains. For example, in the core of another of these domes, the contact of the Crossen
Trachyte Trachyte () is an extrusive igneous rock composed mostly of alkali feldspar. It is usually light-colored and aphanitic (fine-grained), with minor amounts of mafic minerals, and is formed by the rapid cooling of lava enriched with silica and al ...
, a major mapping unit in the south of the range, and the Star Mountain Formation, another mapping unit but in the north of the range, can be seen. This is the only location in the whole of the range where their contact can be mapped. The Crossen extends to Crossen Mesa, 64 km to the south; the Star Mountain 50 km to the north. As seen from the pavilion, it is dramatically exposed in the cliffs of Star Mountain, 27 km away. Each of the panels found on Clayton's Overlook are also displayed in the Powell Visitor Center's lobby, to be studied before or after experiencing them at the summit, or to be enjoyed by those who are unable to see them outdoors.


Land Acquisition

In two distinct but connected transactions, 1978 and 1984, CDRI purchased the tract. This site has been developed as a multi-featured Nature Center and Botanical Gardens, from which research is conducted and educational programs are delivered to students and adult visitors alike. With the construction of its new Visitor Center in January 1998, the CDRI moved operations from the Sul Ross campus to its permanent home near Fort Davis where it has been open to the public year-round ever since. In August 2015, the Visitor Center was dedicated as the Powell Visitor Center, in honor of a co-founder, Dr. Mike Powell, recognized botanist and Director of the SRSU Herbarium. Dr. Powell and his wife Shirley are still active with CDRI. Another co-founder, Dr. James Scudday has been recognized by CDRI by the forming and funding of an undergraduate scholarship fund for graduate science students, named the Scudday Scholarship Fund. Nominated students are selected and awarded scholarships by a committee appointed by CDRI's Board of Directors.


Funding

CDRI operations are funded through admissions, programs, tax-deductible contributions, annual memberships, the proceeds from special events, and short and long-term investments.
Clayton Williams Clayton Wheat "Claytie" Williams Jr. (October 8, 1931 – February 14, 2020) was an American businessman from Midland, Texas who ran for governor in 1990. Despite securing the Republican nomination and initially leading in the polls against Demo ...
, a founding member of CDRI has, along with others, generously donated meaningful resources to the institute. A significant bequest from the estate of renowned biologist Roger Conant in 2005, and a separate similar bequest by Kathryn J. Gloyd in 2010, helped fund a permanent endowment which is managed by a Board committee.


See also

* Chihuahuan Desert Nature Center and Botanical Gardens


References


Chihuahuan Desert Research Institute



Lady Bird Johnson Wildflower Center at the University of Texas at Austin


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