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McKinney Roughs Nature Park
McKinney Roughs Nature Park is a nature park and archaeological site in Cedar Creek, Texas, United States. Located about east of Austin, Texas, Austin and next to the Colorado River (Texas), Colorado River, the park features of trails for hiking, mountain biking, and horseback riding. The park is owned and managed by the Lower Colorado River Authority (LCRA). During the late Archaic period (North America), Archaic Period, around 2,100 years ago, McKinney Roughs served as a camping ground for prehistoric hunter-gatherers. In the 1850s, the land was owned by a ranching family that were early settlers of Texas. Over the years, it passed through various owners until it was acquired by the LCRA, which then transformed it into a nature park in 1998. The park has an unusual convergence of four ecosystems that contribute to its diverse animal and plant life. Within McKinney Roughs and the broader Lost Pines Forest, Lost Pines forest, over 250 bird species find habitat, establishing it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McKinney Falls State Park
McKinney Falls State Park is a state park in Austin, Texas, United States at the confluence of Onion Creek and Williamson Creek. It is administered by the Texas Parks and Wildlife Department. The park opened on April 15, 1976 and is named after Thomas F. McKinney, a businessman, race horse breeder and rancher, who owned and lived on the land in the mid-to-late 19th century. The park is part of the El Camino Real de los Tejas National Historic Trail. Pre-history During the Cretaceous Period through the early Paleogene Period, much of Texas was covered by a shallow subtropical sea. The calcium carbonate sediments deposited during this period lithified into the limestone rock underneath the park's soil and was exposed by erosion around the creek bed. Aquatic reptiles swam in the sea as evidenced by a complete skeleton of a mosasaur found in the rocks of Onion Creek not far from the park. In the park, shells of extinct sea animals such as species of ''Inoceramus'' and '' Exogyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaic Humans
A number of varieties of ''Homo'' are grouped into the broad category of archaic humans in the period that precedes and is contemporary to the emergence of the earliest early modern humans (''Homo sapiens'') around 300 ka. Omo-Kibish I (Omo I) from southern Ethiopia ( 195 or 233 ka), the remains from Jebel Irhoud in Morocco (about 315 ka) and Florisbad in South Africa (259 ka) are among the earliest remains of ''Homo sapiens''. The term typically includes ''Homo neanderthalensis'' (430 ± 25 ka), Denisovans, ''Homo rhodesiensis'' (300–125 ka), ''Homo heidelbergensis'' (600–200 ka), ''Homo naledi'', ''Homo ergaster'', ''Homo antecessor'', and '' Homo habilis''. There is no universal consensus on this terminology, and varieties of "archaic humans" are included under the binomial name of either ''Homo sapiens'' or ''Homo erectus'' by some authors. Archaic humans had a brain size averaging 1,200 to 1,400 cubic centimeters, which overlaps with the range of modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawmill
A sawmill (saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes (dimensional lumber). The "portable" sawmill is of simple operation. The log lies flat on a steel bed, and the motorized saw cuts the log horizontally along the length of the bed, by the operator manually pushing the saw. The most basic kind of sawmill consists of a chainsaw and a customized jig ("Alaskan sawmill"), with similar horizontal operation. Before the invention of the sawmill, boards were made in various manual ways, either rived (split) and planed, hewn, or more often hand sawn by two men with a whipsaw, one above and another in a saw pit below. The earliest known mechanical mill is the Hierapolis sawmill, a Roman water-powered stone mill at Hierapolis, Asia Minor dating back to the 3rd century AD. Other water-powered mills followe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trailhead McKinney Roughs Nature Park Texas 2022
A trailhead is the point at which a trail begins, where the trail is often intended for hiking, biking, horseback riding, or off-road vehicles. Modern trailheads often contain rest rooms, maps, sign posts and distribution centers for informational brochures about the trail and its features, and parking areas for vehicles and trailers. The United States Access Board states "A trailhead is defined as an outdoor space that is designated by an entity responsible for administering or maintaining a trail to serve as an access point to the trail." The intersection of two trails is a trail junction and does not constitute a trailhead. Historically, the cities located at the terminus of major pathways for foot traffic such as the Natchez Trace and the Chisholm Trail were also known as trailheads. For mountain climbing and hiking, the elevation of the trailhead above sea level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sam Houston
Samuel Houston (, ; March 2, 1793 – July 26, 1863) was an American general and statesman who played an important role in the Texas Revolution. He served as the first and third president of the Republic of Texas and was one of the first two individuals to represent Texas in the United States Senate. He also served as the sixth governor of Tennessee and the seventh governor of Texas, the only individual to be elected governor of two different states in the United States. Born in Rockbridge County, Virginia, Houston and his family migrated to Maryville, Tennessee, when Houston was a teenager. Houston later ran away from home and spent about three years living with the Cherokee, becoming known as Raven. He served under General Andrew Jackson in the War of 1812, and after the war, he presided over the removal of many Cherokee from Tennessee. With the support of Jackson and others, Houston won election to the United States House of Representatives in 1823. He strongly supported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Prehistoric (North America)
This is a timeline of in North American prehistory, from 1000 BC until European contact. Timeline * 1000 BC–800 AD: The Norton tradition develops in the Western Arctic along the Alaskan shore of the Bering Strait * 1000 BC: Athapaskan-speaking natives arrive in Alaska and northwestern North America, possibly from Siberia. * 1000 BC: Pottery making widespread in the Eastern Woodlands. * 1000 BC–100 AD: Adena culture takes form in the Ohio River valley, carving fine stone pipes placed with their dead in gigantic burial mounds."North America, 1000 b.c.–1 a.d." ''Heilbrunn Timeline of Art History.'' (retrieved 19 June 2011) See . * 500–1 BC: |
Radiocarbon Dating
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby. It is based on the fact that radiocarbon () is constantly being created in the Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of it contains begins to decrease as the undergoes radioactive decay. Measuring the amount of in a sample from a dead plant or animal, such as a piece of wood or a fragment of bone, provides information that can be used to calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Projectile Point
In North American archaeological terminology, a projectile point is an object that was hafted to a weapon that was capable of being thrown or projected, such as a javelin, dart, or arrow. They are thus different from weapons presumed to have been kept in the hand, such as knives, spears, axes, hammers, and maces. Stone tools, including projectile points, can survive for long periods, were often lost or discarded, and are relatively plentiful, especially at archaeological sites. They provide useful clues to the human past, including prehistoric trade. A distinctive form of point, identified though lithic analysis of the way it was made, is often a key diagnostic factor in identifying an archaeological industry or culture. Scientific techniques exist to track the specific kinds of rock or minerals that were used to make stone tools in various regions back to their original sources. As well as stone, projectile points were also made of worked wood, bone, antler, horn, or ivory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chert
Chert () is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a precipitation (chemistry), chemical precipitate or a diagenesis, diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biogenic sediment that covers large areas of the deep ocean floor, and which contains the silicon skeletal remains of diatoms, Dictyochales, silicoflagellates, and radiolarians. Precambrian cherts are notable for the presence of fossil cyanobacteria. In addition to Micropaleontology, microfossils, chert occasionally contains macrofossils. However, some chert is devoid of any fossils. Chert varies greatly in color (from white to black), but most often manifests as gray, brown, grayish brown and light green to rusty redW.L. Roberts, T.J. Campbell, G.R. Rapp Jr. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scraper (archaeology)
In prehistoric archaeology, scrapers are unifacial tools thought to have been used for hideworking and woodworking. Many lithic analysts maintain that the only true scrapers are defined on the base of use-wear, and usually are those that were worked on the distal ends of blades—i.e., "end scrapers" (french: grattoir, link=no). Other scrapers include the so-called "side scrapers" or racloirs, which are made on the longest side of a flake, and notched scrapers, which have a cleft on either side that may have been used to attach them to something else. Scrapers are typically formed by chipping the end of a flake of stone in order to create one sharp side and to keep the rest of the sides dull to facilitate grasping it. Most scrapers are either circle or blade-like in shape. The working edges of scrapers tend to be convex, and many have trimmed and dulled lateral edges to facilitate hafting. One important variety of scraper is the thumbnail scraper, a scraper shaped much like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Tool
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Age) cultures that have become extinct. Archaeologists often study such prehistoric societies, and refer to the study of stone tools as lithic analysis. Ethnoarchaeology has been a valuable research field in order to further the understanding and cultural implications of stone tool use and manufacture. Stone has been used to make a wide variety of different tools throughout history, including arrowheads, spearheads, hand axes, and querns. Stone tools may be made of either ground stone or knapped stone, the latter fashioned by a flintknapper. Knapped stone tools are made from cryptocrystalline materials such as chert or flint, radiolarite, chalcedony, obsidian, basalt, and quartzite via a process known as lithic reduction. One simple form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyatt Regency Lost Pines Resort And Spa
Hyatt Hotels Corporation, commonly known as Hyatt Hotels & Resorts, is an American multinational hospitality company headquartered in the Riverside Plaza area of Chicago that manages and franchises luxury and business hotels, resorts, and vacation properties. Hyatt Hotels & Resorts is one of the businesses managed by the Pritzker family. The Hyatt Corporation owned by Isaiah Giles came into being upon purchase of the Hyatt House, at Los Angeles International Airport, on September 27, 1957. In 1969, Hyatt began expanding internationally. Hyatt has grown by developing new properties and through acquisitions, with the biggest growth coming from the acquisition of AmeriSuites (later rebranded Hyatt Place) in 2004, Summerfield Suites (later rebranded Hyatt House) in 2005, and Two Roads Hospitality in 2018. In August 2021, Hyatt Hotels Corporation (NYSE: H) acquired Apple Leisure Group (ALG), a luxury resort-management services, travel and hospitality group, from affiliates of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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