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Comb Ridge
Comb Ridge ( nv, ) is a linear north to south-trending monocline nearly 80 miles long in Southeastern Utah and Northeastern Arizona. Its northern end merges with the Abajo Mountains some eleven miles west of Blanding. It extends essentially due south for to the San Juan River. South of the San Juan the ridge turns to the southwest and is more subdued in expression as it extends for an additional to Laguna Creek east of Kayenta, Arizona.''Geosights, Comb Ridge, San Juan County, Utah,'' May 2012, pp. 9–11 USGS 30x60 quadrangle topographic maps: Blanding, Utah-Colorado; Bluff, Utah-Colorado; Rock Point, Arizona-New Mexico; Kayenta, Arizona It was designated a |
San Juan River (Colorado River)
The San Juan River is a major tributary of the Colorado River in the Southwestern United States, providing the chief drainage for the Four Corners region of Colorado, New Mexico, Utah, and Arizona. Originating as snowmelt in the San Juan Mountains (part of the Rocky Mountains) of Colorado, it flows U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed March 21, 2011, through the deserts of northern New Mexico and southeastern Utah to join the Colorado River at Glen Canyon. The river drains a high, arid region of the Colorado Plateau. Along its length, it is often the only significant source of fresh water for many miles. The San Juan is also one of the muddiest rivers in North America, carrying an average of 25 million US tons (22.6 million t) of silt and sediment each year. Historically, the San Juan formed the border between the territory of the Navajo in the south and the Ute in the north. Although Europeans explored th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingate Sandstone
The Wingate Sandstone is a geologic formation in the Glen Canyon Group of the Colorado Plateau province of the United States which crops out in northern Arizona, northwest Colorado, Nevada, and Utah. Geology Wingate Sandstone is particularly prominent in southeastern Utah, where it forms attractions in a number of national parks and monuments. These include Capitol Reef National Park, the San Rafael Swell, and Canyonlands National Park. Wingate Sandstone frequently appears just below the Kayenta Formation and Navajo Sandstone, two other formations of the Glen Canyon group. Together, these three formations can result in immense vertical cliffs of 2000 feet (609 meters) or more. Wingate layers are typically pale orange to red in color, the remnants of wind-born sand dunes deposited approximately 200 million years ago in the Late Triassic. Fossil content Long dated to the Early Jurassic only, fossils (including a phytosaur skull) and other evidence indicate that part of the Wing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comb Ridge From US 163
A comb is a tool consisting of a shaft that holds a row of teeth for pulling through the hair to clean, untangle, or style it. Combs have been used since prehistoric times, having been discovered in very refined forms from settlements dating back to 5,000 years ago in Persia. Weaving combs made of whalebone dating to the middle and late Iron Age have been found on archaeological digs in Orkney and Somerset. Description Combs consist of a shaft and teeth that are placed at a perpendicular angle to the shaft. Combs can be made out of a number of materials, most commonly plastic, metal, or wood. In antiquity, horn and whalebone was sometimes used. Combs made from ivory and tortoiseshell were once common but concerns for the animals that produce them have reduced their usage. Wooden combs are largely made of boxwood, cherry wood, or other fine-grained wood. Good quality wooden combs are usually handmade and polished. Combs come in various shapes and sizes depending on what they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroglyph
A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such images. Petroglyphs are found worldwide, and are often associated with prehistoric peoples. The word comes from the Greek prefix , from meaning "stone", and meaning "carve", and was originally coined in French as . Another form of petroglyph, normally found in literate cultures, a rock relief or rock-cut relief is a relief sculpture carved on "living rock" such as a cliff, rather than a detached piece of stone. While these relief carvings are a category of rock art, sometimes found in conjunction with rock-cut architecture, they tend to be omitted in most works on rock art, which concentrate on engravings and paintings by prehistoric or nonliterate cultures. Some of these reliefs exploit the rock's nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cliff Dwelling
In archaeology, cliff dwellings are dwellings formed by using niches or caves in high cliffs, and sometimes with excavation or additions in the way of masonry. Two special types of cliff dwelling are distinguished by archaeologists: the cliff-house, which is actually built on levels in the cliff, and the cavate, which is dug out, by using natural recesses or openings. Rock-cut architecture generally refers to rather grander temples, but also tombs, cut into living rock, although for example the Ajanta Caves in India, of the 2nd century BCE to 5th century CE, probably housed several hundred Buddhist monks and are cut into a cliff, as are the Mogao Caves in China. Famous cliff dwellings are found around the world. In China, the Guyaju Caves located near Dongmenying, Yanqing District, Beijing are a cave complex of many rock hewn dwellings that form a community. In the United States and Mexico, among the canyons of the southwest, in Arizona, New Mexico, Utah, Colorado, and Chihu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Vandeveer Hayden
Ferdinand Vandeveer Hayden (September 7, 1829 – December 22, 1887) was an American geologist noted for his pioneering surveying expeditions of the Rocky Mountains in the late 19th century. He was also a physician who served with the Union Army during the Civil War. Early life Ferdinand Hayden was born in Westfield, Massachusetts. As a young boy he was fascinated with all nature and wildlife, which led him into the field of medicine. He worked in Cleveland under Jared Potter Kirtland and thereafter in Albany, NY, where he worked under James Hall, of the ''Geological Survey of New York''. He graduated from Oberlin College in 1850 and from the Albany Medical College in 1853, where he attracted the notice of Professor James Hall, state geologist of New York, through whose influence he was induced to join in an exploration of Nebraska Territory, with Fielding B. Meek to study geology and collect fossils. Hall sent him on his first geological venture in the summer of 1853. Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John N
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinle Wash
Chinle Creek is a tributary stream of the San Juan River in Apache County, Arizona and San Juan County, Utah. Its source is at , the confluence of Laguña Creek and the Chinle Wash arroyo. Its name is derived from the Navajo word ''ch'inili'' meaning 'where the waters came out. Its sources is in Canyon de Chelly National Monument where Canyon de Chelly and Canyon del Muerto have their confluence at an elevation of 5,616 feet at . It then trends northwest to its confluence with Laguña Creek where it forms Chinle Creek, 7 miles northeast of Dennehotso, Arizona at an elevation of 4,774 feet / 1,455 meters. Its mouth is at its confluence with the San Juan River at at an elevation of , 9 miles northeast of Mexican Hat, Utah. See also *List of rivers of Arizona *List of rivers of Utah This is a list of rivers in the U.S. state of Utah in the United States, sorted by watershed. Colorado River The Colorado River is a major river in the Western United States, emptying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancestral Puebloans
The Ancestral Puebloans, also known as the Anasazi, were an ancient Native American culture that spanned the present-day Four Corners region of the United States, comprising southeastern Utah, northeastern Arizona, northwestern New Mexico, and southwestern Colorado. They are believed to have developed, at least in part, from the Oshara tradition, which developed from the Picosa culture. The people and their archaeological culture are often referred to as ''Anasazi'', meaning "ancient enemies", as they were called by Navajo. Contemporary Puebloans object to the use of this term, with some viewing it as derogatory. The Ancestral Puebloans lived in a range of structures that included small family pit houses, larger structures to house clans, grand pueblos, and cliff-sited dwellings for defense. They had a complex network linking hundreds of communities and population centers across the Colorado Plateau. They held a distinct knowledge of celestial sciences that found form in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ Rock Formation
The Organ Rock Formation or Organ Rock Shale is a formation within the late Pennsylvanian to early Permian Cutler Group and is deposited across southeastern Utah, northwestern New Mexico, and northeastern Arizona. This formation notably outcrops around Canyonlands National Park, Natural Bridges National Monument, and Monument Valley of northeast Arizona, southern Utah. The age of the Organ Rock is constrained to the latter half of the Cisuralian epoch by age dates from overlying and underlying formations. Important early terrestrial vertebrate fossils have been recovered from this formation in northern Arizona, southern Utah, and northern New Mexico. These include the iconic Permian terrestrial fauna: ''Seymouria'', ''Diadectes'', ''Ophiacodon'', and ''Dimetrodon''. The fossil assemblage present suggests arid environmental conditions. This is corroborated with paleoclimate data indicative of global drying throughout the early Permian. Geographic extent The Organ Rock Formation is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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