The Mississippi River forms most of Arkansas's eastern border, except in Clay and Greene counties where the St. Francis River forms the western boundary of the Missouri Bootheel, and in dozens of places where the current channel of the Mississippi has meandered from where it had last been legally specified. Arkansas shares its southern border with Louisiana, its northern border with Missouri, its eastern border with Tennessee and Mississippi, and its western border with Texas and Oklahoma.
Arkansas is a land of mountains and valleys, thick forests and fertile plains. The so-called Lowlands are better known by names of their two regions, the Delta and the Grand Prairie. The Arkansas Delta is a flat landscape of rich alluvial soils formed by repeated flooding of the adjacent Mississippi. Further away from the river, in the southeast portion of the state, the Grand Prairie consists of a more undulating landscape. Both are fertile agricultural areas.
The Delta region is bisected by an unusual geological formation known as Crowley's Ridge. A narrow band of rolling hills, Crowley's Ridge rises from 250 to 500 feet (150 m) above the surrounding alluvial plain and underlies many of the major towns of eastern Arkansas.
Northwest Arkansas is part of the Ozark Plateau including the Boston Mountains, to the south are the Ouachita Mountains and these regions are divided by the Arkansas River; the southern and eastern parts of Arkansas are called the Lowlands. All of these mountains ranges are part of the U.S. Interior Highlands region, the only major mountainous region between the Rocky Mountains and the Appalachian Mountains. The highest point in the state is Mount Magazine in the Ozark Mountains; it rises to 2,753 feet (839 m) above sea level.
Arkansas is home to many caves, such as Blanchard Springs Caverns. It is currently the only U.S. state in which diamonds are mined.
Arkansas Dirt Track - Covers Centerville Super Speedway, Arkansas Raceway Park and Thunder Mountain Super Speedway. Includes schedule, payout, results, points and forum.
Batesville Speedway - Drag racing racetrack news, racing calendar, results, and information for drivers and visitors new to the facility.
Beebe Speedway - Dirt track racetrack features calendar of events, race results, drivers page, and winners list.
Centerville Dragway - In Van Buren, Arkansas they host a variety of stock car classes. Race results, point standings, weekly race news, pictures of cars and drivers, track location and news is available.
Crawford County Speedway - In Van Buren, Arkansas they host a variety of stock car classes. Race results, point standings, weekly race news, pictures of cars and drivers, track location and news is available.
Crowley's Ridge Raceway - Stock car racing on this dirt track located in Crowly's Ridge. Photos, news, rules and points standings.
Hipp Racing, LLC - Featuring its services, profiles of street cars, dragsters, altereds, full body race cars and information available on area drag strips along with their events. Mabelvale, AR.
I-30 Speedway - Guide to auto racing track with pictures, updated news, and schedule of upcoming events. Newsletter gives results and capsules of race nights. Little Rock, AR.
Keith Craft Racing Engines - Offers sales of crate engines for auto racing with photos and engine descriptions provided. Arkadelphia, AR.
North Central Arkansas Speedway - IMCA Sanctioned dirt track racing located in the Ozarks. Racing events include IMCA Modified, Super Stock, Hobby Dwarf, Cruisers, and Go-Karts. Schedule, results, points, pit stories and links.
Southwest Arkansas Superspeedway - Located in Nashville, AR. This dirt track races Hobby, Pure and Street Stock, IMCA Modifieds and Bomber classes. Site features driver profiles, schedules, rules, weather and message board.
Thunder Valley Speedway - This Fayetteville clay oval features various stock, modified and powder puff racing events. Slide show, news, pictures, special event information and schedule.
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