The Delaware Mountains are a

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

, spanning part of Culberson County. The highest point in the range is the Delaware Benchmark at an elevation of above sea level. The range extends south-southeast from Guadalupe Pass at the southern extent of the

Guadalupe Mountains The Guadalupe Mountains ( es, Sierra de Guadalupe) are a mountain range located in West Texas and southeastern New Mexico. The range includes the highest summit in Texas, Guadalupe Peak, , and the "signature peak" of West Texas, El Capitan, bo ...

and

Guadalupe Mountains National Park Guadalupe Mountains National Park is an American national park in the Guadalupe Mountains, east of El Paso, Texas. The mountain range includes Guadalupe Peak, the highest point in Texas at , and El Capitan used as a landmark by travelers on the ...

. The range is formed by horizontal layers of

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms wh ...

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates ...

, and

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especia ...

that were deposited 250 million years ago during the

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Pale ...

that now encompass the

Delaware Mountain Formation The Delaware Mountain Formation is a geologic formation in the Delaware Mountains of Texas. It preserves fossils dating back to the Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the e ...

. The range is named for the

Lenape The Lenape (, , or Lenape , del, Lënapeyok) also called the Leni Lenape, Lenni Lenape and Delaware people, are an indigenous peoples of the Northeastern Woodlands, who live in the United States and Canada. Their historical territory inclu ...

, who are also known as the Delaware Indians. The Delaware Mountain Wind Energy Center is a 28.5 megawatt

wind farm A wind farm or wind park, also called a wind power station or wind power plant, is a group of wind turbines in the same location used to produce electricity. Wind farms vary in size from a small number of turbines to several hundred wind tur ...

that was constructed on the northern portion of the range in 1999 and is operated by

NextEra Energy Resources NextEra Energy Resources, LLC (NEER) is a wholesale electricity supplier based in Juno Beach, Florida. NEER is a subsidiary of NextEra Energy (), a Fortune 200 company. Prior to 2009, NextEra Energy Resources was known as FPL Energy. NextEra ...

References

Mountain ranges of Texas Landforms of Culberson County, Texas {{CulbersonCountyTX-geo-stub

See also

References