The Boston Mountains are a high and deeply dissected plateau located in northern Arkansas and eastern Oklahoma. In Geology and Earth science, a plateau, also called a high plateau or tableland, is an area of highland, usually consisting Arkansas ( is a state located in the southern region of the United States. Oklahoma ( is a state located in the South Central region of the United States of America. The Oklahoma portion of the range is locally referred to as the Cookson Hills. The Cookson Hills are in the eastern part of Oklahoma. They are an extension of the Boston Mountains of Arkansas to the east and the southwestern The rocks of the region are essentially little disturbed, flat-lying sedimentary layers of the Paleozoic age. Sedimentary rock is one of the three main rock types (the others being igneous and Metamorphic rock) The Paleozoic or Palaeozoic Era (from the Greek palaio (παλαιο "old" and zoe (ζωη "life" meaning "ancient life" The highest ridges and peaks are capped by Pennsylvanian sandstone and shale. Sandstone is a Sedimentary rock composed mainly of Sand -size Mineral or rock grains. Shale (also called mudstone) is a fine-grained Sedimentary rock whose original constituents were Clay minerals or Muds It is characterized by The deeply eroded valleys are cut into Mississippian limestone and below that layer the Ordovician dolomite. Limestone is a Sedimentary rock composed largely of the Mineral Calcite ( Calcium carbonate: CaCO3 The Ordovician is a geologic period and system, the second of six of the Paleozoic era, and covers the time between 488 Dolomite (ˈdɒləmaɪt is the name of a Sedimentary Carbonate rock and a Mineral, both composed
The Boston Mountains form the southwestern part of the Ozark plateau where they are the highest and most rugged portion of the Ozarks. Summits can reach elevations of just over 2,560 feet with valleys 500 to 1,550 feet deep. Turner Ward Knob (TWK) is the highest named peak. Located in western Newton County, Arkansas, its elevation is 2,463 feet. Newton County is a County located in the US state of Arkansas. Nearby, five unnamed peaks have elevations at or slightly above 2,560 feet. Two of these highest peaks are located 2. 2 miles west of TWK, one being the location of the Buffalo Lookout fire tower. The other three highest peaks are located 4-5 miles SSW of TWK along Arkansas State Highway 16.
The Boston Mountains are the source of rivers and streams that flow out from the mountains in all directions. Within a 3 mile radius of a point just west of the summits discussed above are located the sources of the White River, the Buffalo River, the Kings River, War Eagle Creek, and Little Mulberry Creek. The White River is a 722 mile (1162 km long River that flows through the U BuffaloRiverjpg|250px|thumb|Buffalo River from river trail overlook near Steel Creek in the Boston Mountains Other rivers and streams having their headwaters in the Boston Mountains include the Illinois River, the Mulberry River, Lee Creek, Frog Bayou, Big Piney Creek, Illinois Bayou, and the Little Red River. The Illinois River is a tributary of the Arkansas River, approximately 100 mi (160 km long in the U The Mulberry River is a Tributary of the Arkansas River, about 70 mi (115 km long in northwestern Arkansas in the United States. Lee Creek is a small River in Arkansas which starts near West Fork in Washington County and flows south to the Arkansas River passing To the south, the Arkansas River valley separates the Boston Mountains from the Ouachita Mountains. The Arkansas River is a major Tributary of the Mississippi River. The Ouachita Mountains are a mountain range located in west central Arkansas and southeastern Oklahoma.
In Arkansas the Boston Mountains are found in the following counties: Boone, Carroll, Cleburne, Conway, Crawford, Franklin, Independence, Johnson, Madison, Newton, Pope, Searcy, Stone, Van Buren, and Washington. Boone County is a County located in the US state of Arkansas. Carroll County is a County located in the US state of Arkansas. Cleburne County is a County located in the US state of Arkansas. Conway County is a County located in the US state of Arkansas. Crawford County is a County located in the US state of Arkansas. Franklin County is a County located in the US state of Arkansas. Independence County is a County located in the US state of Arkansas. Johnson County is a County located in the US state of Arkansas originally created from a portion of Pope County Madison County is a County located in the US state of Arkansas. Newton County is a County located in the US state of Arkansas. Pope County is a County located in the US state of Arkansas. As of 2000 the population was 54469 Searcy County is a County located in the US state of Arkansas. Stone County is a County located in the US state of Arkansas. Van Buren County is a County located in the US state of Arkansas. Washington County is a County located in the US state of Arkansas.
In Oklahoma the Boston Mountains are found in these counties: Adair, Cherokee, Muskogee, Sequoyah, and Wagoner. Adair County is a County located in the US state of Oklahoma. Cherokee County is a County located in the US state of Oklahoma. Muskogee County is a County located in the US state of Oklahoma. Sequoyah County is a County located in the US state of Oklahoma. Wagoner County is a County located in the US state of Oklahoma.
[NAD83 geographic coordinates for TWK are N35. 8631°, W093. 4544°. Coordinates for the 5 unnamed highest peaks are N35. 8637°, W093. 4931°; N35. 8607°, W093. 4935°; N35. 8151°, W093. 4968°; N35. 8126°, W093. 4984°; and N35. 7990°, W093. 5005°]
Geology and physiography
The Boston Mountains are a physiographic section of the larger Ozark Plateaus province, which in turn is part of the larger Interior Highlands physiographic division. The physiographic regions of the world are a means of defining the Earth's landforms into distinct regions based upon Nevin Fenneman 's classic three-tiered approach of divisions The US Interior Highlands is a mountainous region spanning eastern Oklahoma, western and northern Arkansas, southern Missouri, and the extreme southeast [1]
The area is underlain by Pennsylvanian sandstone, shale, and siltstone, where some folding and faulting has occurred. [2] The sandstone beds become thinner, but more shaly in the west as the mountains decline in elevation. [3]
References
- ^ Physiographic divisions of the conterminous U. S.. U. S. Geological Survey. Retrieved on 2007-12-06. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1060 - Béla I of Hungary is crowned king of Hungary 1240 - Mongol invasion of Rus: Kiev
- ^ Designing A Future For Arkansas Wildlife. State of Arkansas. Retrieved on 2007-12-30. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1460 - Wars of the Roses: Battle of Wakefield. 1816 - The Treaty of St
- ^ Bowman, Isaiah (1911). Forest Physiography: Physiography of the United States and Principles of Soild in Relation to Forestry. J. Wiley & sons, 453.
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