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The geology of Oklahoma is characterized by Carboniferous rocks in the east, Permian rocks in the center and towards the west, and a cover of Tertiary deposits in the panhandle to the west. The panhandle of Oklahoma is also noted for its Jurassic rocks as well.
Oklahoma has sixty-two oxbow lakes above 10 acres (0.040 km 2) in size. The largest, near the Red River in McCurtain County is 272 acres (1.10 km 2). The prolonged drought that started in 1930 and created the condition called the "Dust Bowl", led to the construction of a great many reservoirs throughout the state.
Black Mesa, the highest point in Oklahoma at 4,973 feet (1,516 m), is located in Cimarron County. The Panhandle occupies nearly all of the true High Plains within Oklahoma, being the only part of the state lying west of the 100th meridian , which generally marks the westernmost extent of moist air from the Gulf of Mexico .
The Great Sand Dunes National Park has the highest sand dunes in North America. There are 30 square miles of dune field with five massive dunes – the tallest being 750 feet.
The following is a list of lakes in Oklahoma located entirely (or partially, as in the case of Lake Texoma) in the state. Swimming, fishing, and/or boating are permitted in some of these lakes, but not all. Oklahoma has more than 200 lakes created by dams. All lakes listed are man-made. Oklahoma's only natural lakes are oxbow and playa lakes ...
The dunes are believed to be remnants of a massive lake, Laka Alamosa, that dried up roughly 440,000 years ago, according to the park’s website.Over time, the park says wind, water and sediment ...
A particular dune field covers the floor of a 40 km-long and 5 km broad NE-SW valley. It is made up of very large parabolic dunes with lesser blowout dunes built on top. [3] Atacama Desert. Near Copiapó in the southern reaches of the Atacama Desert the largest dunes of Chile exists. Based on an analysis of sediments it has been suggested that ...
A Worm From Hell Is Invading Texas Education Images - Getty Images There’s an invasive species of worm making itself known in Texas once again—the hammerhead flatworm.