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San Marcos Springs
San Marcos Springs is the second largest natural cluster of springs in Texas. The springs are located in the city of San Marcos, Texas, about 30 miles (48 km) southwest of Austin and 46 miles (74 km) northeast of San Antonio. Although Spring Lake is highly protected, it is accessible to visitors through the Meadows Center for Water and the Environment, a program of Texas State University, which offers glass-bottom boat tours among other opportunities to explore and learn about the ecosystem. Geology The San Marcos Springs is an area of artesian outflow from the Edwards Aquifer along the Balcones Escarpment. More than 200 springs flow from three large fissures and other smaller openings in the rock. The springs provide most of the water for the San Marcos River, which flows southward from the springs' location. The springs have never been known to stop flowing. The average flow is 152 ft³/s (4,300 liters/s); the lowest recorded flow of 46 ft³/s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Marcos, Texas
San Marcos ( ) is a city and the county seat of Hays County, Texas, United States. The city's limits extend into Caldwell and Guadalupe Counties, as well. San Marcos is within the Austin–Round Rock metropolitan area and on the Interstate 35 corridor between Austin and San Antonio. Its population was 44,894 at the 2010 census and 67,553 at the 2020 census. Founded on the banks of the San Marcos River, the area is thought to be among the oldest continuously inhabited sites in the Americas. San Marcos is home to Texas State University and the Meadows Center for Water and the Environment."Meadows Center for Water and the Environment : Texas State University" In 2010, San Marcos was listed in '' |
Archaeology
Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology is distinct from palaeontology, which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Marcos Salamander
The San Marcos salamander (''Eurycea nana'') is a small species of aquatic, lungless salamander native to the United States, endemic to Spring Lake and a small region of the headwaters of the San Marcos River near Aquarena Springs, in Hays County, Texas. It is one to two inches long, with a slender body and external gills, and is a reddish-brown in color. Description ''E. nana'' is an aquatic salamander. It does not leave the water to change into a terrestrial form, but rather matures in the water. As a neotenic form, ''E. nana'' retains its gills for its lifetime. The San Marcos salamander has a narrow head with a round snout, large eyes, and a dark iris. External gills are developed and pigmented. 2-6 palatopterygoid and 7-13 premaxillary teeth are present. The species is uniformly light brown in color, with a series of seven to nine irregular light spots present along its midline. The trunk is flattened above with a dorsal furrow that extends from head to tail. The venter, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas Blind Salamander
The Texas blind salamander (''Eurycea rathbuni'') is a rare cave-dwelling troglobite amphibian native to San Marcos, Hays County, Texas, specifically the San Marcos Pool of the Edwards Aquifer. Description The species has a broad, flat, snout and head, and vestigial eyes beneath that are covered by skin. Like other neotenous salamanders, it has external gills for absorbing oxygen from the water. The salamander's mature length is around . The forelimbs carry four digits and the hind limbs possess five digits. Its diet varies by what flows into its cave, and includes blind shrimp (''Palaemonetes antrorum''), snails, and amphipods. Distribution and habitat Specimens have been collected at seven localities in the Purgatory Creek system and along the San Marcos Fault near San Marcos, Texas. Adults and immature larvae are well-adapted for living in underground streams in caves, and many probably inhabit deep recesses that are not accessible to collectors. Specimens have been ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fountain Darter
The fountain darter (''Etheostoma fonticola'') is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in the headwaters of only two rivers in Texas, United States: the Comal River and the San Marcos River. It is generally smaller than long and feeds on small invertebrates. It is a federally listed endangered species of the United States and is also listed as endangered by the IUCN. Distribution and habitat The fountain darter is known from only two locations, primarily the headwaters of the spring-fed San Marcos River, having been observed as far as 1.25 miles downstream, as well as the upper reaches of the Comal River in central Texas. Its geographic isolation is reflective of its incredibly specific habitation preferences which demand conditions which can only be found in these two Texas river headwaters. In these unique locations they can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species Act
The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting imperiled species. Designed to protect critically imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation", the ESA was signed into law by President Richard Nixon on December 28, 1973. The Supreme Court of the United States described it as "the most comprehensive legislation for the preservation of endangered species enacted by any nation"."Tennessee Valley Authority v. Hill" 437 U.S. 153 (1978) Retrieved 24 November 2015. The purposes of the ESA are two-fold: to prevent extinction and to recover species to the point where the law's protections are not needed. It therefor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washingtonia Filifera
''Washingtonia filifera'', the desert fan palm, California fan palm, or California palm,Flora of North America Association. ''Flora of North America: North of Mexico Volume 22: Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in Part), and Zingiberidae''. pp. 105–06, 116–17. . is a flowering plant in the palm family Arecaceae, native to the far southwestern United States and Baja California, Mexico. Growing to tall by broad, it is an evergreen monocot with a tree-like growth habit. It has a sturdy, columnar trunk and waxy, fan-shaped (palmate) leaves. Names The Latin specific epithet ''filifera'' means "thread-bearing". Description ''Washingtonia filifera'' grows to in height, and occasionally to as much as in ideal conditions. The California fan palm is also known as the desert fan palm, American cotton palm, and Arizona fan palm. The fronds are up to long, made up of a petiole up to long, bearing a fan of leaflets long. They have long, thread-like, white fiber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Fan Palm
''Washingtonia filifera'', the desert fan palm, California fan palm, or California palm,Flora of North America Association. ''Flora of North America: North of Mexico Volume 22: Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in Part), and Zingiberidae''. pp. 105–06, 116–17. . is a flowering plant in the palm family Arecaceae, native to the far southwestern United States and Baja California, Mexico. Growing to tall by broad, it is an evergreen monocot with a tree-like growth habit. It has a sturdy, columnar trunk and waxy, fan-shaped (palmate) leaves. Names The Latin specific epithet ''filifera'' means "thread-bearing". Description ''Washingtonia filifera'' grows to in height, and occasionally to as much as in ideal conditions. The California fan palm is also known as the desert fan palm, American cotton palm, and Arizona fan palm. The fronds are up to long, made up of a petiole up to long, bearing a fan of leaflets long. They have long, thread-like, white fiber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas State University-San Marcos
Texas State University is a public research university in San Marcos, Texas. Since its establishment in 1899, the university has grown to the second largest university in the Greater Austin metropolitan area and the fifth largest university in the state of Texas. Texas State University reached a record enrollment of 38,808 students in the 2016 fall semester, continuing a trend of enrollment growth over several years. The university offers more than 200 degree options from its ten colleges. Texas State is classified among "R2: Doctoral Universities – High research activity" and an emerging research university by the State of Texas. The university is accredited by the Southern Association of Colleges and Schools (SACS). Faculty from the various colleges have consistently been granted Fulbright Scholarships resulting in Texas State's being recognized as one of the top producing universities of Fulbright Scholars. The 36th president of the United States, Lyndon B. Johnson, grad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquarena Springs
The Meadows Center for Water and the Environment, formerly Aquarena Springs and later the Aquarena Center, is an educational center in San Marcos, Texas, that seeks to preserve the unique archeological and biological resources of Spring Lake. Formed from more than 200 artesian springs, this lake is one of the world's largest aquifer fed systems. A state antiquities landmark, this site is also believed to be one of the longest continuously inhabited places in North America. The Meadows Center provides educational programs, recreation, hands-on activities and collaborative projects that encourage visitors, scientists and students to learn about Spring Lake's habitat, endangered species and water/environmental resource management issues. There are glass-bottom boat rides , and the Discovery Center provides educational displays allowing people to view native animals and fish. Snorkeling and diving programs are offered with an educational emphasis and interpreter led field trips. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chisholm Trail
The Chisholm Trail was a trail used in the post-Civil War era to drive cattle overland from ranches in Texas to Kansas railheads. The trail was established by Black Beaver, a Lenape guide and rancher, and his friend Jesse Chisholm, a Cherokee merchant. They collected and drove numerous cattle along the trail to Kansas, where they could be shipped east to achieve higher prices. The southern terminus was Red River Station, a trading post near the Red River along the northern border of Texas. The northern terminus was a trading post near Kansas City, Kansas. Chisholm owned both of these posts. In the years of the cattle drives, cowboys would drive large herds from ranches across Texas to the Red River Station and then north to Kansas City. Overview Texas ranchers using the Chisholm Trail had their cowboys start cattle drives from either the Rio Grande area or San Antonio. They joined the Chisholm Trail at the Red River, at the border between Texas and Oklahoma Territor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White American
White Americans are Americans who identify as and are perceived to be white people. This group constitutes the majority of the people in the United States. As of the 2020 Census, 61.6%, or 204,277,273 people, were white alone. This represented a national white demographic decline from a 72.4% share of the US's population (white alone) in 2010. As of July 1, 2021, United States Census Bureau estimates that 75.8% of the US population were white alone, while Non-Hispanic whites were 59.3% of the population. White Hispanic and Latino Americans totaled about 12,579,626, or 3.8% of the population. European Americans are the largest panethnic group of white Americans and have constituted the majority population of the United States since the nation's founding. The US Census Bureau uses a particular definition of "white" that differs from some colloquial uses of the term. The Bureau defines "White" people to be those "having origins in any of the original peoples of Europe, the Midd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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