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The rift consists of three major basins and many smaller basins, less than 100 square kilometres (39 sq mi). The three major basins (from northernmost to southernmost) are the San Luis, Española, and Albuquerque basins. The rift's northern extent is delineated by the upper Arkansas River basin between Leadville and Salida, Colorado. Further ...
Oil exploration began in earnest in 1916 with an unsuccessful well east of El Dorado, in Union County (which at the time was known as Urbana County). A week after Samuel S. Hunter found modest amounts of oil in the Hunter No. 1 well near Stephens, Arkansas, the Constantin Oil and Refining Company found large amounts of oil and natural gas. Soon ...
The Piney Woods is a temperate coniferous forest terrestrial ecoregion in the Southern United States covering 54,400 square miles (141,000 km 2) of East Texas, southern Arkansas, western Louisiana, and southeastern Oklahoma.
Arkansas River: 47,970 1,358: Murray Dam, near Little Rock: White River: 26,760 758: near De Valls Bluff: ... USGS Hydrologic Unit Map – State of Arkansas (1974 ...
The Saline River, also known as Saline Creek, is a 202-mile-long (325 km) [2] tributary of the Ouachita River in the south central portion of the U.S. state of Arkansas. [3] It is the longest river that flows entirely within the state of Arkansas. The Saline River begins in the eastern foothills of the Ouachita Mountains in Saline and Garland ...
The Arkansas River enters the state near Van Buren and flows southeast through Little Rock to empty into the Mississippi River near Arkansas Post. Most of the river serves barge traffic to Tulsa, Oklahoma, as the McClellan–Kerr Arkansas River Navigation System. [3] Through south Arkansas, the Ouachita River and the Saline River run roughly ...
The flora and fauna of the ridge seem more closely related to the Tennessee hills to the east than to the Ozark Mountains to the west. This unique habitat has been protected by the establishment of several state and city parks, the St. Francis National Forest, recreational lakes, and in 1997 a national scenic byway, the Crowley's Ridge Parkway.
Accommodation zones may be located where older crustal structures intersect the rift axis. In the Gulf of Suez rift, the Zaafarana accommodation zone is located where a shear zone in the Arabian-Nubian Shield meets the rift. [6] Rift flanks or shoulders are elevated areas around rifts. Rift shoulders are typically about 70 km wide. [7]