For example, the Ogallala Aquifer — a vast, 174,000 square-mile (450,000 square kilometers) groundwater reservoir — supplies almost one-third of America's agricultural groundwater, and more ...Nov 9, 2020 · The Ogallala-High Plains Aquifer is one of the world’s largest groundwater sources, extending from South Dakota down through the Texas Panhandle across portions of eight states. Its water ... The aquifer is a structural subset of the Ogallala formation, which is a geological structure that formed through the Miocene and Pliocene eras (i.e., 23 Mya to 2 Mya) (Kansas Geological Survey, 2015). The composition of the aquifer is a mixture between “silt, sand, gravel, and clay—rock debris” (Kansas Geological Survey, 2019) that ...Jul 15, 2014 · It stretches across all or portions of 8 states generally from north to south to include South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico and Texas and lies under about 174,000 square miles of land. The Ogallala Aquifer ( oh-guh-LAH-lah) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States.The HPA underlies around 450,658 km 2 (174,000 mi 2) of which the Ogallala aquifer is the principal geologic formation underlying 347,059 km 2 (134,000 mi 2) (Gutentag et al. 1984). The Ogallala aquifer is primarily a water table (unconfined) aquifer with saturated thickness ranging from 0 m to about 366 m (McGuire 2017 ).The Ogallala aquifer turned the region into America's breadbasket. Now it, and a way of life, are being drained away. This story appears in the August 2016 issue of National Geographic magazine ...This aquifer covers 450.000 km2and provides 30% of all groundwater in the USA that is used for agriculture and rangeland. The main agricultural products include corn, wheat, soybeans, and feed for livestock. The aquifer is named for the Ogallala Group, the main geologic formation in the aquifer.The Ogallala aquifer extends through 48 counties of the Texas Panhandle and is the southernmost extension of the largest aquifer (High Plains aquifer) in North America. The Ogallala Formation of late Miocene to early Pliocene age consists of heterogeneous sequen-ces of coarse-grained sand and gravel in the lower part, grading upward into clay ...This aquifer system is located along Colorado’s eastern slope between Greeley and Colorado Springs. ... Wet Mountain Valley and Ogallala Formation of the High ...The Ogallala Aquifer is a shallow water table aquifer. It is located under the surface of the great plains and the high plains region of North America. One of the world’s largest …Read More. Other articles where Ogallala Aquifer is discussed: aquifer: Recharge: Similarly, the massive Ogallala Aquifer of the Great Plains in the United States no longer receives the water recharge from the Rocky …Accumulation is the part of the water cycle in which water gathers in large quantities such as rivers, lakes, oceans, glaciers, ice caps and aquifers, according to the U.S. Geological Survey. After water accumulates, it evaporates back into...Oct 6, 2020 · The Ogallala (pronounced “oh-ga-la-la”) Aquifer is the largest aquifer in the United States and among the largest in the world. It got its name from the Ogala Sioux Indian Tribe. The Ogallala Aquifer, also known as the High Plains Aquifer, lies under the High Plains region of the U.S., an area comprising eight states, stretching from South ... Major aquifers. This entry lists the major (mega) aquifer system (s) that underlie a country, keeping in mind that many of these mega aquifers are so large that they extend under multiple countries. More than 30% of freshwater is held in underground aquifers. There is great variation in the size of such aquifers, but a limited number of very ...Between 1950 and 2013, the water levels dropped over 250 feet in an Ogallala well near Lubbock, Texas. The aquifer has seen more moderate declines elsewhere, but it's causing problems for cities, well owners and irrigators alike. Oklahoma only permits its irrigators enough groundwater to cover each acre of their land with 2 feet of water per ...It stretches across all or portions of 8 states generally from north to south to include South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico and Texas and lies under about 174,000 square miles of land.Groundwater is located underground, typically in large aquifers. It must be pumped out of the ground to use for human and animal consumption and for crop irrigation, Gilmore said. Much of Nebraska overlies one of the largest reserves of groundwater in the United States — the High Plains Aquifer, commonly referred to as the Ogallala Aquifer ...The geologic and hydrogeologic characteristics of Tertiary lithostratigraphic units (Ogallala Formation and White River Group) that typically compose or underlie the High Plains aquifer system in southeastern Wyoming were described physically and chemically, and evaluated at a location on the Belvoir Ranch in Laramie County, Wyoming.Aug 29, 2018 · Explore the Ogallala Aquifer, a vital source of groundwater for the Texas High Plains, with an interactive map that shows its extent, depth, quality, and changes …Feb 11, 2014 · Ogallala Aquifer. These layers show the spatial variability in the saturated thickness and saturated thickness change on the Great Plains. ... Find area, length, or …An aquifer that is far underground in one location may crop out at Earth’s surface in another where its water is discharged through springs. A significant amount of groundwater returns to the surface through natural springs and water wells drilled into aquifers. ... including the well-known Ogallala aquifer, the Great Bend Prairie aquifer in ...It has dropped more than 30 meters (100 feet) Identify 3 things people are doing to protect the Ogallala aquifer: • some farmers have begun to limit irrigation during bird migrations in order to allow surface water levels to rise. • other farmers have adopted water saving irrigation systems and are planting crops that require less water.Study with Quizlet and memorize flashcards containing terms like Beneath which North American region is the Ogallala Aquifer located ?, Which North America region lies west and north of the Piedmont and is an internally complex zone of higher and rougher country reaching attitudes of 3,000-6,000 feet?, A coniferous evergreen forest is also known as a and more. The High Plains aquifer, which includes the well-known Ogallala aquifer, is the most important water source for much of western and central Kansas (fig. 1), supplying 70% to 80% of the water used by Kansans each day. Water from the High Plains aquifer supports the region's cities, industry, and much of its agriculture.An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs.The areal and vertical location of major aquifers is fundamental to the determination of groundwater availability for the Nation. A principal …According to the High Plains Underground Water Conservation District, the Ogallala/Edwards-Trinity Aquifer saw an average decline of 0.71 feet in our region between early 2022 and early 2023 ...The Ogallala (pronounced “oh-ga-la-la”) Aquifer is the largest aquifer in the United States and among the largest in the world. It got its name from the Ogala Sioux Indian Tribe. The Ogallala Aquifer, also known as the High Plains Aquifer, lies under the High Plains region of the U.S., an area comprising eight states, stretching from South ...The first U.S. Six Senses location is expected to open in New York City in 2023 and will feature 137 rooms and suites and a social club. We may be compensated when you click on product links, such as credit cards, from one or more of our ad...The Ogallala Aquifer, or High Plains Aquifer, is a vast yet shallow aquifer located beneath the Great Plains in the United States. One of the world's largest aquifers, it lies under about 174,000 mi² (450,000 km²) in portions of South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas. It was named in 1899 by N.H. Darton from …The aquifer is a structural subset of the Ogallala formation, which is a geological structure that formed through the Miocene and Pliocene eras (i.e., 23 Mya to 2 Mya) (Kansas Geological Survey, 2015). The composition of the aquifer is a mixture between “silt, sand, gravel, and clay—rock debris” (Kansas Geological Survey, 2019) that ...The range in normal annual rainfall over the Ogallala region is 17-23 inches compared to 23-35 inches over the Quaternary region. Figure 1—Location of High Plains aquifer, Ogallala and Quaternary regions, and groundwater management districts in Kansas. The tan area indicates where substantial saturated thickness existed prior to irrigation ...drip irrigation. a proccess by which pipes placed near plant roots drip only as much water as the plants need. -slowly dripping hose, buried or on top. flood irrigation. -flood field and let water soak in evenly. furrow irrigation. a trench that is flooded with water. spray irrigation. -pumped through to nozzles.The Ogallala Aquifer underlies 45 million ha, providing water for approximately 1.9 million people and supporting the robust agriculture economy of the US Great Plains region. The Ogallala Aquifer has experienced severe depletion, particularly in the Southern Plains states. This paper presents policy innovations that promote adoption …The Ogallala Aquifer, the vast underground reservoir that gives life to these fields, is disappearing. In some places, the groundwater is already gone. This is the breadbasket of America—the...The Ogallala Aquifer, or High Plains Aquifer, is a vast yet shallow aquifer located beneath the Great Plains in the United States. One of the world's largest aquifers, it lies under about 174,000 mi² (450,000 km²) in portions of South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas. It was named in 1899 by N.H. Darton from …Indices Commodities Currencies StocksMar 6, 2023 · The Ogallala Aquifer is a vast underground aquifer that underlies the areas of eight states in the United States: South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico and …Tweet. The Ogallala Aquifer is a shallow table aquifer that sits under eight states ranging from South Dakota south to Texas and New Mexico. It is a major source of irrigation water throughout the region. Formation of the Ogallala Aquifer. Before the Aquifer formed, the land now known as the Great Plains looked nothing like it does now.The Ogallala is like a 174,000 square mile egg carton. In some places, the water-saturated thickness of the aquifer dips 1,200 feet; across the county line it might only go down a few feet. Each ...Advertisement The location of your bank is also a very important decision. You have to do some market research to determine how well a new bank will do in a particular area, or where the best spot in a large geographic region might be. Th...Kansas High Plains Aquifer Atlas This atlas has been created to serve as the primary gateway to the most recent graphical data available for the High Plains aquifer in Kansas. As newer/updated data become available, this atlas will be updated. ... to continuously monitor water levels in the Ogallala-High Plains aquifer. 8 images. Interactive Atlas.Farms on the High Plains of Texas are running out of water supplied by the Ogallala Aquifer, which experts say could lead to a global food crisis. Charlie Spinhirne stands at the dryland farm ...Tweet. The Ogallala Aquifer is a shallow table aquifer that sits under eight states ranging from South Dakota south to Texas and New Mexico. It is a major source of irrigation water throughout the region. Formation of the Ogallala Aquifer. Before the Aquifer formed, the land now known as the Great Plains looked nothing like it does now. The Ogallala Aquifer is named for resting atop of the Ogallala Formation of ... Because this aquifer is located within the larger High Plains Aquifer, the ...The Ogallala Aquifer, also known as the High Plains Aquifer, is a vast yet shallow underground water table aquifer located beneath the Great Plains in the United States. It is one of the world's largest aquifers and covers an area in portions of eight states, which include Colorado, South Dakota, Nebraska, Wyoming, Kansas, Oklahoma, New Mexico ...The High Plains aquifer, which includes the well-known Ogallala aquifer, is the most important water source for much of western and central Kansas (fig. 1), supplying 70% to 80% of the water used by Kansans each day. Water from the High Plains aquifer supports the region's cities, industry, and much of its agriculture.The Ogallala aquifer is located in the United States, where it stretches between many states from South Dakota, through Nebraska and central and western Kansas, Oklahoma, and the northern part of ...The Ogallala aquifer is located in the United States, where it stretches between many states from South Dakota, through Nebraska and central and western Kansas, Oklahoma, and the northern part of ...High Plains aquifer. As was discussed earlier, the High Plains aquifer is a major regional hydrologic unit that can be broken down into different geologic aquifer units formed at different times in various locations. Figure 9 shows the location of the High Plains aquifer and its major constituent formation, the Ogallala Formation.The Problem with the Ogallala Aquifer. The Ogallala Aquifer is being depleted at a rapid speed. Farming accounts for 94% of the groundwater use. In fact, since the introduction of large scale irrigation in the 1940’s, water levels in the Ogallala Aquifer have declined over 100 feet in many parts, according to The Water Encyclopedia.In most of the aquifer area, the Ogallala Formation of Miocene age and overlying hydraulically connected Quaternary deposits, if present, are the principal geologic units in the aquifer. In northwestern Nebraska, south central South Dakota, and southeastern Wyoming, the fractured part of the Brule Formation or the Arikaree Group, is the ...7 de ago. de 2018 ... Geologist F.N. Darton of the U.S. Geological Survey located the first outlines of the aquifer near Ogallala, Nebraska. His discovery nourished ...The Ogallala aquifer, also known as the High Plains aquifer, is the primary source of water for many communities throughout the High Plains region. Stretching from South Da - kota to Texas, the Ogallala aquifer is one of the largest aquifer systems in the U.S. It underlies nearly 122 million acres ofThe Ogallala Aquifer ( oh-guh-LAH-lah) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States.Apr 13, 2023 · The Ogallala Aquifer is healthy and even thriving in many parts of Nebraska. The state is maintaining much higher groundwater volume than many states to the south, according to UNL water experts and decades-long mapping from the U.S. Geological Survey. The Ogallala Aquifer is the largest aquifer in the United States and is a major aquifer of Texas underlying much of the High Plains region. The aquifer consists of sand, gravel, clay, and silt and has a maximum thickness of 800 feet. Freshwater saturated thickness averages 95 feet.The Ogallala Aquifer is a shallow water table aquifer located beneath the Great Plains in the United States. One of the world's largest aquifers, it underlies an area of approximately 174,000 mi² in portions of eight states. Ozone Layer.The Ogallala Aquifer is healthy and even thriving in many parts of Nebraska. The state is maintaining much higher groundwater volume than many states to the south, according to UNL water experts and decades-long mapping from the U.S. Geological Survey.Oklahoma The Ogallala aquifer is one of the major aquifers in Oklahoma, underlying the Panhandle and parts of the northwest regions. In the eastern part of the Oklahoma Panhandle, the Ogallala formation often sits directly on top of consolidated sediments, which are more than 250 million years old. The Ogallala aquifer extends from the northern United States into the Texas Panhandle and West Texas and is the primary source of water within the District. The aquifer consists of sands, gravel, silts, and clay sediments that were deposited as part of ancient river systems approximately three to six million years ago during the Neogene ... The Ogallala aquifer, the largest unit of the hydrologically connected High Plains aquifer system, is one of the world’s largest fresh groundwater resources. It underlies 175,000 square miles/ 112 million acres in eight states. The High Plains Aquifer system slowly formed as hundreds of feet of silt, clay, and gravel eroded from the Rocky ...ArcGIS - Ogallala Aquifer Map. Details Basemap. Ogallala Aquifer Map. UrbanAreas at risk Web Map by valdeze_IU. Last Modified: April 29, 2022. (0 ratings, 0 comments, 94 views)Study with Quizlet and memorize flashcards containing terms like Beneath which part of the United States is its largest aquifer, the Ogallala Aquifer, located?, Which of these dams on the Colorado River that have decreased seasonal water flows is the closest to the U.S./Mexico border?, The Mexican environmental action group that joined with groups …Are you in search of an AT&T store near your location? Look no further. In this article, we will guide you on how to find the perfect AT&T location for all your wireless needs. The easiest and most convenient way to find an AT&T store near ...Dec 26, 2021 · These include the two primary groundwater systems in the western United States: California’s Central Valley aquifer and the Ogallala Aquifer, which underlies America’s heartlands from South ... Tolk Station, which is not part of the ERCOT grid and supplies power to customers in Texas and New Mexico, will stop burning coal by 2028 under the agreement - a move that will likely save millions of gallons of groundwater from the Ogallala Aquifer every day. The plant's owner, Xcel Energy, plans to build a portfolio of replacement ...Bali is a small island located in the country of Indonesia, which also happens to be a popular tourist destination, particularly for Americans and Australians. Learn more about where exactly it’s located and what makes it so popular, along ...Groundwater does flow through the High Plains Aquifer, but at an average rate of only 300 millimeters (12 inches) per day. The depth to the water table of the Ogallala Aquifer varies from actual surface discharge to over 150 meters (500 feet). Generally, the aquifer is found from 15 to 90 meters (50 to 300 feet) below the land surface.Rain is needed as a source of fresh water, which is essential for the survival of humans, plants and animals. Rain fills aquifers, lakes and rivers, maintaining the lives of living organisms. Rain maintains natural features, such as forests...Aug 29, 2018 · Explore the Ogallala Aquifer, a vital source of groundwater for the Texas High Plains, with an interactive map that shows its extent, depth, quality, and changes …ArcGIS - Ogallala Aquifer Map. Details Basemap. Ogallala Aquifer Map. UrbanAreas at risk Web Map by valdeze_IU. Last Modified: April 29, 2022. (0 ratings, 0 comments, 94 views)Study with Quizlet and memorize flashcards containing terms like Beneath which North American region is the Ogallala Aquifer located ?, Which North America region lies west and north of the Piedmont and is an internally complex zone of higher and rougher country reaching attitudes of 3,000-6,000 feet?, A coniferous evergreen forest is also known as a and more.Big Bend GMD No. 5. The High Plains aquifer components in Kansas are made up of the Ogallala, Great Bend Prairie, and Equus Beds regions as shown on the map below. The High Plains aquifer underlies about 174,000 square miles of the central United States. It falls east of the Rocky Mountains in the southern part of the Great Plains. The Ogallala (pronounced “oh-ga-la-la”) Aquifer is the largest aquifer in the United States and among the largest in the world. It got its name from the Ogala Sioux Indian Tribe. The Ogallala Aquifer, also …An aquifer that is far underground in one location may crop out at Earth’s surface in another where its water is discharged through springs. A significant amount of groundwater returns to the surface through natural springs and water wells drilled into aquifers. ... including the well-known Ogallala aquifer, the Great Bend Prairie aquifer in ...The Ogallala Aquifer is a vast underground aquifer that underlies the areas of eight states in the United States: South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico and Texas. Both the thickest and the most expansive parts of this aquifer lie in Nebraska. The Ogallala Aquifer extends from the northern United States into the Texas Panhandle and West Texas and is the primary source of water within the District Request a presentation about the Ogallalla Aquifer and surrounding water resourcesThe Ogallala Aquifer (oh-guh-LAH-lah) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km ) in portions of eight states (South Dakota, … See moreThe Ogallala Aquifer, also known as the High Plains Aquifer, is a vast yet shallow underground water table aquifer located beneath the Great Plains in the ...Groundwater provides a reliable water supply that has contributed to the intensification of agriculture and increased food production occurring over the past 50 y ().Large increases in crop and livestock production commonly co-occur with associated aquifer depletion throughout the semiarid grasslands of the world (2, 3).Yet, the gains in …Feb 19, 2019 · The Ogallala Aquifer underlies parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. From wheat and cows to corn …The Ogallala Aquifer, located in the Central Plains of the United States, is essential for agricultural irrigation and public water supply. Indiscriminate ...1 de mar. de 2021 ... ... located near a sustainable source of water. ... In Kansas, the aquifer comprises three components — the Ogallala aquifer, the Great Bend Prairie ...Terms in this set (20) Beneath which part of the United States is its largest aquifer, the Ogallala Aquifer, located? The Great Plains. Which of the following is a source of water pollution in North America? A. municipal sewage. B. industry. C. mining operations. D. nuclear fuel. E. ALL OF THE ABOVE.Contrasting management impacts in the Northern and Southern Ogallala. For the Northern Ogallala, sufficient precipitation helps prevent the depletion of the aquifer caused by water withdrawals. Without assimilating GRACE observations, the model tends to underestimate groundwater recharge. So, assimilation is essential to capture water storage ...The Ogallala Aquifer region, located in the Great Plains of the central United States, is the largest freshwater aquifer in North America, supporting one of the most agriculturally productive regions in the world. ... The Ogallala aquifer is an unconfined (not trapped by an impervious layer) aquifer spanning from Texas (31°44’36.312”N ...Terms in this set (20) Beneath which part of the United States is its largest aquifer, the Ogallala Aquifer, located? The Great Plains. Which of the following is a source of water pollution in North America? A. municipal sewage. B. industry. C. mining operations. D. nuclear fuel. E. ALL OF THE ABOVE.The Ogallala aquifer, the largest unit of the hydrologically connected High Plains aquifer system, is one of the world’s largest fresh groundwater resources. It underlies 175,000 square miles/ 112 million acres in eight states. The High Plains Aquifer system slowly formed as hundreds of feet of silt, clay, and gravel eroded from the Rocky ...
Jul 15, 2014 · In the Midwest, the Ogallala Aquifer is the single most important source of water in the High Plains region, providing nearly all the water for residential, industrial, and agricultural use. It stretches across …. Creative nails naples florida
Between 1950 and 2013, the water levels dropped over 250 feet in an Ogallala well near Lubbock, Texas. The aquifer has seen more moderate declines elsewhere, but it’s causing problems for cities, well owners and irrigators alike. Oklahoma only permits its irrigators enough groundwater to cover each acre of their land with 2 feet …The Ogallala Aquifer, also known as the High Plains Aquifer, is a vast yet shallow underground water table aquifer located beneath the Great Plains in the United States. It is one of the world's largest aquifers and covers an area in portions of eight states, which include Colorado, South Dakota, Nebraska, Wyoming, Kansas, Oklahoma, New Mexico ... Rapidly dropping reservoir levels in the West are capturing national media attention, but the nation’s underground aquifers are also under threat. The Ogallala aquifer is one of the world’s largest fresh water resources. Communities and agriculture in eight states in the High Plains region of the country rely on it. Rapidly dropping reservoir levels in the West are capturing national media ...Apr 18, 2021 · Playas replenish the Ogallala Aquifer, a 948-trillion-gallon underground body of water that underpins agriculture in an eight-state region. Though these little wetlands comprise only 2 percent of the land area in the southern plains, they are the primary source of recharge for the Ogallala, which in turn sustains irrigation of the High Plains ... The Ogallala Aquifer, also known as the High Plains Aquifer, is a vast yet shallow underground water table aquifer located beneath the Great Plains in the ...Explore the Ogallala Aquifer, a vital source of groundwater for the Texas High Plains, with an interactive map that shows its extent, depth, quality, and changes over time. Learn about the aquifer's characteristics, challenges, and management strategies with the Texas Water Development Board.Feb 21, 2017 · Location of the High Plains Aquifer. The directive from Congress was contained in the Water Resources Development Act of 1986 (Public Law 99-662).This law recognized the economic importance of the High Plains aquifer to the States in the High Plains region and added Title III to the Water Resources Research Act of 1984 (Public Law 98-242). Tweet. The Ogallala Aquifer is a shallow table aquifer that sits under eight states ranging from South Dakota south to Texas and New Mexico. It is a major source of irrigation water throughout the region. Formation of the Ogallala Aquifer. Before the Aquifer formed, the land now known as the Great Plains looked nothing like it does now.The location of each exempted aquifer was converted from text descriptions to geospatial data. A table of attributes associated with each aquifer exemption polygon includes information on the state, county, depth, geologic formation, lithology, approval date, and regulatory criteria met. More information on each attribute can be found in the ...What is special about the Ogallala Aquifer? Located in the Midwestern United States, it is the world's largest aquifer and supports millions of acres of agriculture. About 75% of Earth is covered by water. Almost 98% of this is _____ and is found in oceans; the remaining 2.5% is fresh water, and most of this is located _____. ...Are you looking for a Geek Squad location near you? Whether you need help with your computer, TV, or other electronic device, the Geek Squad has you covered. With locations all over the country, it’s easy to find a store close to you. Here’...Explore the Ogallala Aquifer, a vital source of groundwater for the Texas High Plains, with an interactive map that shows its extent, depth, quality, and changes over time. Learn about the aquifer's characteristics, challenges, and management strategies with the Texas Water Development Board.The Ogallala Aquifer is the largest aquifer in the United States and one of the largest aquifers in the world. It is referred to as the High Plains Aquifer in most technical reports because it underlies portions of eight states in America’s central “high” plains (predominantly Nebraska and Kansas, and parts of Oklahoma, Colorado, New ...The Ogallala (pronounced “oh-ga-la-la”) Aquifer is the largest aquifer in the United States and among the largest in the world. It got its name from the Ogala Sioux Indian Tribe. The Ogallala Aquifer, also known as the High Plains Aquifer, lies under the High Plains region of the U.S., an area comprising eight states, stretching from South ...The extent of the saturated Tertiary units defines the western boundary of the aquifer. The Ogallala Formation is the principal geologic unit in the High Plains aquifer in eastern Colorado and New Mexico. The Ogallala generally consists of an unconsolidated and poorly sorted sequence of gravel, sand, silt, and clay..