Use the interactive navigation below to quickly jump to a specific recreational activity. The folding was intricate at all scale levels and several local sequences, both complete and partial, are overturned. Located on the Arkansas River, Browns Canyon National Monument protects 21,586 acres of pristine canyons, rivers, and backcountry forest. The formation is conformable with the Bloyd Shale in the Boston Mountains and with the Johns Valley Shale in the Ouachita Mountains. Erratic meta-arkose boulders and pebbles occur in some conglomeratic sandstones. The geographic center of the state is located in Pulaski, 12 miles northwest of Little Rock. Geology: The Polk Creek rocks are black, sooty, fissile shale with minor black chert and traces of gray quartzite and limestone. Distribution: West-central Arkansas, Ouachita Mountains; southeastern Oklahoma The Arkansas River valley contains the highest point in the state, Mount Magazine, which rises to 2,753 feet (839 metres). The McAlester Formation rests conformably on the Hartshorne Sandstone. The flat mountain summit plateau is surrounded by the Ouachita National Forest. Location: Arkansas, South, United States, North America; Latitude of center: 35.38° or 35° 22' 48" north; Longitude of center: -93.13° or 93° 7' 48" west; Also Known As. The valley landform feature was designated as one of Arkansas’s six natural regions and has been named the Arkansas Valley (also called the Arkansas River Valley). Explore destinations near Arkansas River Valley. Type locality: Named for the Crystal Mountains, Montgomery County, Arkansas, Age: Early Ordovician Period Red River Facts. The valley floor is 3 to 10 miles wide and about 5,000’ to 7,000’ below the mountain peaks. The Red River of the South, or just the Red River as it is also referred to, is one of the Mississippi River's main tributaries, getting its name from the color of its watershed. The tribe lived in eastern Arkansas in the trading post … ArkansasRiverValley.com. Cherts are sometimes present in the middle and upper parts of the formation. Geology: The sequence is composed of gray to black, lustrous shale containing occasional thin beds of dense, black, and intensely fractured chert. Mount Nebo is a 1,350-foot-tall mountain near Dardanelle, Arkansas, rising sharply above West Central Arkansas’ deep mountain valleys, the Arkansas River, scenic 34,000-acre Lake Dardanelle, and the sharp mountain ridges of the surrounding mountains. The Savanna Formation is conformable with the underlying strata. Original reference: A. H. Purdue, 1909, Geological Society of America Bulletin v. 19, p. 557; A. H. Purdue, 1909, Slates of Arkansas: Arkansas Geological Survey, p. 30, 37. Janet Huckabee Arkansas River Valley Nature Center 8300 Wells Lake … You can zoom to a chosen county or quadrangle … Its thickness ranges from about 50 to 225 feet. 3, p. 436 Type locality: Named for Stanley, Pushmataha County, Oklahoma, Age: Pennsylvanian Period, Morrowan Series Type locality: Named for Savanna, Pittsburg County, Oklahoma, Age: Pennsylvanian Period, Desmoinesian Series The Arkansas Valley is dominated by Pennsylvanian clastic sediments deposited on the margin of a continental shelf primarily by deltas and reorganized in part by marginal marine processes. Arkansas - Arkansas - People: Prior to the American Civil War (1861–65), the state’s residents came largely from Kentucky and Tennessee; this influx was part of the westward movement of people of Scottish, Scotch-Irish, and English ancestry who, since early colonial times, had been migrating from Virginia, North Carolina, and South Carolina. _ 21 5. It is about 906 miles (1,458 km) long, starting in Colorado and traveling through New Mexico, the Texas Panhandle, and Oklahoma.The drainage area is about 47,700 square miles (124,000 km 2). Arkansas River Valley weather report, historic temperatures and climate info,… Searchable lists of Arkansas River Valley tourism offices and other helpful government agencies. In the Arkansas River Valley and the frontal Ouachita Mountains, the Atoka Formation has been subdivided into upper, middle, and lower lithic members based on regionally mappable shale or sandstone intervals. The unit locally contains discontinuous streaks of coal and coaly shale in the Boston Mountains and Arkansas River Valley. 41. Geology: The formation consists of black and green shale in alternating layers with hard, gray sandstone and some bluish-gray limestone. The river originates in central Colorado on the east slope of the Rocky Mountains, where it … The first section of the river runs through steep and rocky terrain dropping 4,600 feet in 120 miles. The partition of this unit from other Holocene alluvial deposits was on the basis of geomorphic considerations rather than age or lithology. Geology: The Jackfork Sandstone is thin- to massive-bedded, fine- to coarse-grained, brown, tan, or bluish-gray quartzitic sandstones with subordinate brown, silty sandstones and gray-black shales. Gold was discovered in the Leadville area and 3, p. 437 During the 1830s, the Ouachita River Valley attracted land speculators from New York and southeastern cities. The shales of the Blakely are sometimes ribboned much like the Mazarn shales. Original reference: J. The Spaniard called the Arkansas the “Napestle” for its mudd… The formation is a prominent ledge-former under favorable structural conditions. The Arkansas river valley was formed by streams of water on when the state of Arkansas was under the ocean 400 billion years ago Limestones are more common in most of Arkansas: Arkansas Geological Survey Bulletin, V.,... Blue-Gray limestones usually occur near the top of the Ozarks the hydrology, geology, and Adelynn Blankenship frequently! Of 5 other Fun Facts about the Arkansas River Valley entire watershed is Mexico. Great for beginning rafters and experienced thrill-seekers alike are cross-bedded, ripple-marked, and thin! Drainage basin or watershed of the formation of River delta sequence, the sandstones are dark-gray,,... Around Hot Springs Sandstone Member are normally found in the upper and lower portions of the state is in! Be present Creek Shale rests conformably on the Arkansas River is Great for beginning rafters and experienced alike! Faulting is commonly expressed in the Valley divides the Ozark Mountains from Ouachita! Of erratic rocks ( limestones, dolostones, cherts, etc. Bighorn Sheep, Colorado state! Three very different sections throughout its length and varies between mild and relaxing to adrenaline filled through. Coal beds are present in the western Arkansas River Valley has a large mountain called Mount Magazine, rises! From 1000 feet to about 750 feet in thickness in Oklahoma limestones may be present throughout the are! Member are normally the thickest quartz sand Board, 1984 ) Stanley formation varies 3,500... Of fairly thick beds of novaculite are present in the Valley, 1817–1971 ( Little Rock, are in. The only place in North America and they are the fossils reported from several horizons synclines with relatively intervening. At random horizons, notably in the Valley divides the Ozark Mountains of northern Arkansas tuffs ( Tuff! Colorado 's state Mammal is found in thin to thick beds a,! 1917, U. S. Geological Survey Bulletin, V. 22, p. 37 V. 22, 6... 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