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Cumberland Plateau
The Cumberland Plateau is the southern part of the Appalachian Plateau in the Appalachian Mountains of the United States. It includes much of eastern Kentucky and Tennessee, and portions of northern Alabama and northwest Georgia. The terms " Allegheny Plateau" and the "Cumberland Plateau" both refer to the dissected plateau lands lying west of the main Appalachian Mountains. The terms stem from historical usage rather than geological difference, so there is no strict dividing line between the two. Two major rivers share the names of the plateaus, with the Allegheny River rising in the Allegheny Plateau and the Cumberland River rising in the Cumberland Plateau in Harlan County, Kentucky. Geography The Cumberland Plateau is a deeply dissected plateau, with topographic relief commonly of about , and frequent sandstone outcroppings and bluffs. At Kentucky's Pottsville Escarpment, which is the transition from the Cumberland Plateau to the Bluegrass in the north and the Penny ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennyroyal Plateau
The Pennyroyal Plateau or Pennyroyal Region, often spelled Pennyrile, is a large physiographic region of Kentucky that features rolling hills, caves, and karst topography in general. It is named for '' Hedeoma pulegioides'' (the American pennyroyal), a wild mint that grows in the area. It is also called the "Mississippian Plateau," for the Mississippian geologic age in which it was formed. The Pennyroyal is bordered by the Pottsville Escarpment in the east. The Pottsville Escarpment is the transition zone from the central part of Kentucky to the higher and geologically younger Cumberland Plateau in the eastern part of the state. The Pennyroyal is bordered on the north by Muldraugh Hill, the geological escarpment that forms the transition from the geologically older Bluegrass to the Pennyroyal. This is a series of knobs and ridges based on hard siltstones. The Pennyroyal is bordered on the west by the younger Jackson Purchase. The Pennyroyal is often thought by non-geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee Valley
The Tennessee Valley is the drainage basin of the Tennessee River and is largely within the U.S. state of Tennessee. It stretches from southwest Kentucky to north Alabama and from northeast Mississippi to the mountains of Virginia and North Carolina. The border of the valley is known as the Tennessee Valley Divide. The Tennessee Valley contributes greatly to the formation of Tennessee's three legally recognized sectors (the Grand Divisions). Geography The Tennessee Valley begins in the upper head water portions of the Holston River, the Watauga River, and the Doe River in Northeast Tennessee and Southwest Virginia, as well as east of Asheville, North Carolina, with the headwaters of the French Broad and Pigeon rivers, all of which join at the confluence of the French Broad and the Holston to form the Tennessee River in Knoxville. From there, the river travels southwest, absorbing additional tributaries of the Little River, the Little Tennessee, and the Clinch, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson County, Alabama
Jackson County is the northeasternmost County (United States), county in the U.S. state of Alabama. As of the 2020 United States census, 2020 census, the population was 52,579. The county seat is Scottsboro, Alabama, Scottsboro. The county was named for Andrew Jackson, general in the United States Army and afterward President of the United States of America. Jackson County is a prohibition or dry county, but three cities within the county (Bridgeport, Alabama, Bridgeport, Scottsboro, Alabama, Scottsboro, and Stevenson, Alabama, Stevenson) are "wet", allowing alcohol sales. Jackson County comprises the Scottsboro, Alabama Micropolitan Statistical Area, and Jackson county is included in the Chattanooga–Cleveland–Dalton combined statistical area. It is the site of Russell Cave National Monument, an archeological site with evidence of 8,000 years of human occupation in the Southeast. History Jackson County was established on December 13, 1819, after the federal government arran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickajack Dam
Nickajack Dam is a hydroelectric dam in Marion County in the U.S. state of Tennessee. It is one of nine dams on the Tennessee River owned and operated by the Tennessee Valley Authority, which built the dam in the mid-1960s to replace the outdated Hales Bar Dam upstream. The dam impounds the Nickajack Lake and feeds into Guntersville Lake. Nickajack Dam is named for a Cherokee village once located just upstream from the dam (the site is now submerged). The village was the namesake for Nickajack Cave, which was partially flooded by the reservoir.Tennessee Valley Authority, ''The Nickajack Project: A Report on the Planning, Design, Construction, Initial Operations, and Costs'', Technical Report No. 16 (Knoxville, Tenn.: Tennessee Valley Authority, 1972), pp. 1-9, 32-34, 284. Location Nickajack Dam is located above the mouth of the Tennessee River, near the point where the states of Tennessee, Georgia, and Alabama meet. This stretch of the river marks a region where the ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee River
The Tennessee River is a long river located in the Southern United States, southeastern United States in the Tennessee Valley. Flowing through the states of Tennessee, Alabama, Mississippi, and Kentucky, it begins at the confluence of French Broad River, French Broad and Holston River, Holston rivers at Knoxville, Tennessee, Knoxville, and drains into the Ohio River near Paducah, Kentucky. It is the largest tributary of the Ohio, and drains a basin of . Its tributary, the Little Tennessee River, flows into it from Western North Carolina and northeastern Georgia. Etymology The river appears on France, French maps from the late 17th century with the names "Caquinampo" or "Kasqui." Maps from the early 18th century call it "Cussate," "Mitchell Map, Hogohegee," "Callamaco," and "Acanseapi." A 1755 British map showed the Tennessee River as the "River of the Cherakees."Ann ToplovichTennessee River System, ''Tennessee Encyclopedia of History and Culture'', December 25, 2009; upd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sequatchie Valley
Sequatchie Valley is a relatively long and narrow valley in the U.S. state of Tennessee and, in some definitions, Alabama. It is generally considered to be part of the Cumberland Plateau region of the Appalachian Mountains; it was probably formed by erosion of a compression anticline, rather than rifting process as had been formerly theorized. The Sequatchie River drains the valley in Tennessee, flowing south to southwest from the southern part of Cumberland County, Tennessee to the Tennessee River near the Alabama border. Geologically, the Sequatchie Valley continues south of the Tennessee River into central Alabama. The Tennessee River flows through the Alabama portion of the valley to the vicinity of Guntersville, Alabama. The valley continues south of Guntersville, where it is called Browns Valley, drained by Browns Creek (Thornbury 1965:148). Although this whole valley is geologically the same, the name Sequatchie is commonly used only for the Tennessee portion of the va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand Mountain (Alabama)
Sand Mountain is a sandstone plateau in northeastern Alabama and (to a far lesser extent) northwestern Georgia and southeastern Tennessee where the plateau is known as Raccoon Mountain and Elder Mountain. It is part of the southern tip of the Appalachian mountain chain and it is the largest plateau in the chain. Geologically a continuation of Walden Ridge, Sand Mountain is part of the Cumberland Plateau, separated from the main portion of the plateau by the Tennessee River and Sequatchie Valley. The average elevation on Sand Mountain is around above sea level, compared to about in the surrounding area.Google Earth This elevation leads to its having the coolest climate in the state of Alabama. The largest city on Sand Mountain is Albertville, in Marshall County. As of the 2020 census, the population of the city was 22,386. History Prehistory through the Colonial Period The Sand Mountain area has been inhabited for at least 9,000 years, as evidenced by archaeological finds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walden Ridge
Walden Ridge (or Walden's Ridge) is a mountain ridge and escarpment located in Tennessee in the United States. It marks the eastern edge of the Cumberland Plateau and is generally considered part of it. Walden Ridge is about long, running generally north-south. Its highest point is at Hinch Mountain (near Crossville), which reaches above sea level. Sometimes Walden Ridge is called the Cumberland Escarpment. Geology Sequatchie Valley, a long valley in the Cumberland Plateau, is located just west of the southern part of Walden Ridge. Being part of the Cumberland Plateau, Walden Ridge is also part of the Appalachian Plateau physiographic province. The Sequatchie River runs through the valley. To the east of Walden Ridge are the Ridge-and-valley Appalachians and the Tennessee River. Walden Ridge is significantly higher than the Cumberland Plateau, and its eastern slope, descending over from the plateau to the Tennessee Valley, is steep and escarpment-like. Geologically, Walden R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nashville Basin
The Nashville Basin, also known as the Central Basin, is a term often used to describe the area surrounding Murfreesboro, Tennessee, in which Nashville is located. The Central Basin was caused by an uplifting which produced a dome known as the Nashville Dome. The Nashville Dome is evidenced by the underlying rock strata that all dip downward away from Nashville. The uplifting of the Nashville Dome fractured overlying strata, making it more easily eroded, and thus the "dome" resulted in a "basin". Uplifted strata in the center of a geological dome have higher potential erosive energy than the surrounding strata, because they are physically higher. Erosion thus acts on the uplifted area at a greater rate than on the surrounding flat-lying area, creating a low area, i.e., a basin. This area is more correctly referred to as the "Central Dome" of Tennessee. Nashville is located in the northwestern portion of the Central Basin. The basin extends for approximately forty-five to six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highland Rim
The Highland Rim is a geographic term for the area in Tennessee, North Alabama, and Kentucky which surrounds the Central Basin. The Central Basin is a geological dome which has subsequently fractured and eroded to produce a basin. The Highland Rim is a cuesta surrounding the basin, and the border where the difference in elevation is sharply pronounced is an escarpment. Ther feature continues well into Southern Indiana even up as far as Central Indiana as the Indiana Uplands. Geology and physiography The Highland Rim is a physiographic section of the larger Interior Low Plateaus province, which in turn is part of the larger Interior Plains physiographic division. Most of the Highland Rim is located in U.S. EPA Ecoregion 71, Interior Plateau, which is a part of the Eastern Temperate Forest. The sections of the Highland Rim are referred to the four cardinal directions, e.g., "Northern Highland Rim", etc. The Highland Rim is rather continuous and any division of it, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfall
A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling onto softer rock, which erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them. Humans have had a distinct relationship with waterfalls since prehistory, travelling to see them, exploring and naming them. They can present formidable barriers to navigation along rivers. Waterfalls are religious sites in many cultures. Since the 18th century, they have received increased attention as tourist destinations, sources of hydropower, andparticularly since the mid-20th centuryas subjects of research. Definition and terminology A waterfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
