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Coharie Formation
Leon County Pleistocene coastal terraces and shorelines were the geologic result of warming and cooling periods in what is now Leon County, Florida during the Pleistocene epoch. Overview Repeated growth and retreat of the North American glacial sheet resulted in fluctuations of sea level over several thousand years. Florida submerged and emerged several times leaving behind established terraces assigned by mineral deposits and maximum sea level relative to the current mean sea level. These marine terraces and shorelines were named by various geologists, verified and mapped by the USGS. Each glacial retreat caused sea level to rise less than the previous warming event, giving an extremely accurate depiction of the appearance of Florida. Leon County was studied in detail by C. W. Hendry and C. Sproul in 1966. Hazelhurst The Hazelhurst terrace and shoreline (formerly the Brandywine) was assigned by C. W. Cooke and includes Vernon's Coastwise delta plain and MacNeil's high Pliocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida 2
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jefferson County, Florida
Jefferson County is a county located in the Big Bend region in the northern part of the U.S. state of Florida. As of the 2020 census, the population was 14,510. Its county seat is Monticello. Jefferson County is part of the Tallahassee, FL Metropolitan Statistical Area but is the 3rd most rural county in Florida. There are no traffic signals within the entire county. History Jefferson County was created in 1827. It was named for Thomas Jefferson, third president of the United States, who had died the year before the county's establishment. Forts of Jefferson County * Fort Roger Jones (1839), Aucilla (Ocilla Ferry), north of US 90. * Fort Noel (1839–1842), south of Lamont on the Aucilla River, six miles (10 km) northwest of Fort Pleasant in Taylor County. Also known as Fort Number Three (M). * Camp Carter (1838), near Waukeenah. * Fort Welaunee (1838), a settlers' fort on the Welaunee Plantation near Wacissa. Fort Gamble (1839–1843) was later established here. * Fort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles County, Maryland
Charles County is a county in Southern Maryland. As of the 2020 census, the population was 166,617. The county seat is La Plata. The county was named for Charles Calvert (1637–1715), third Baron Baltimore. Charles County is part of the Washington metropolitan area and the Southern Maryland region. With a median household income of $103,678, it is the 39th wealthiest county in the United States and the highest-income county with a Black-majority population. History Charles County was created in 1658 by an Order in Council. There was also an earlier Charles County from 1650 to 1654, sometimes referred to in historic documents as Old Charles County, which consisted largely of lands within today’s borders but "included parts of St. Mary’s, Calvert, present-day Charles and Prince George’s County". In April 1865, John Wilkes Booth made his escape through Charles County after shooting President Abraham Lincoln. He was on his way to Virginia. He stopped briefly in Waldorf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wicomico River (Potomac River)
The Wicomico River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 15, 2011 tributary of the lower tidal portion of the Potomac River located in the U.S. state of Maryland south of Washington, DC. The river empties into the Potomac at Cobb Island Cobb Island is a small island located at the confluence of the Potomac and Wicomico rivers in southern Charles County, Maryland, United States. It is located approximately south of Washington, and is considered to be within the Washington, D.C ... and St. Margaret's Island. Its watershed area (excluding water) is , with 2% impervious surface in 1994Wicomico (on Potomac), MD Surf your watershed, Watershed profile accessed June 13, 2012 in Charles County, Maryland, Charles, St. Mary's, and southern Prince George's counties. The lower section of the river forms part of the boundary between Charles and St. Mary's counties. The Wicomico River was designated as a S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Lafayette
Lake Lafayette is a prairie lake located in the coastal lowland in eastern Tallahassee, Leon County, Florida with US 27 / State Road 20 running close on its south side. History Prehistoric Originally known as Prairie Lake, Lake Lafayette is the remnant of a Pleistocene river delta. Water levels receded in the last ice age and the coast moved farther south of the site which became a river valley and eventual a tributary of the St. Marks River. Dissolution processes culminated in the formation of a large basin, , a major sinkhole is located in Upper Lake Lafayette just South of the Cody Scarp. The Lake Lafayette Basin is considered to be one of the premier paleoarchaelological sites in Florida. The lake area is surrounded by archaeological sites. A large number of Native American mounds surround the lake; one excavated mound is currently displayed at the Florida Museum of Natural History. The large middens on Lake Piney Z, and the Temple Mounds at Fallschase, are of particul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cody Scarp
The Cody Scarp or Cody Escarpment is located in north and north central Florida United States. It is a relict scarp and ancient persistent topographical feature formed from an ancient early Pleistocene shorelines of ~1.8 million to 10,000 years BP during interglacial periods. The Cody Scarp has a slope of 5% to 12%. The Cody Scarp runs from just east of the Apalachicola River to Alachua County. It is the boundary over that range between the Gulf Coastal Lowlands and the Northern Highlands of Florida. The Gulf Coast Lowlands have only a thin layer of soil over limestone, while the Northern Highlands consist of plateaus of sand, clay and carbonate rock. The scarp rises about from the Gulf Coastal Lowlands to the Northern Highlands. The Cody Scarp and the Gulf Coastal Lowlands are karst landscapes, with many sinkholes, springs, underground streams, and related features. The scarp, at 42.6 meters (140 feet) to 45.7 meters (150 feet) above sea level, is most prominent in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Iamonia
Lake Iamonia is a large, subtropical prairie lake in northern Leon County, Florida, United States, created during the Pleistocene epoch. History Forming Iamonia Lake Iamonia's base was established during the Early Pleistocene through submergence of land during the various glacial retreats (a warming period) and emergence from the sea during glacial stadial advancement (a cooling period). Though the ice sheet was further north, it affected Iamonia's appearance and significant changes began to take shape during the Okefenokee terrace and shoreline period and was complete by the end of the Wicomico terrace and shoreline event thousands of years later. ''See: Leon County Pleistocene coastal terraces'' Ancient fauna Lake Iamonia area is known to have supported a variety of megafauna from as far back as 23.6 Ma. Fossils of the bear-dog '' Amphicyon'' and the dog-like '' Temnocyonines'' have been uncovered at nearby sites. The Griscom Plantation Site, once located on Luna Plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochlockonee River
The Ochlockonee River ( ) is a fast running river, except where it has been dammed to form Lake Talquin in Florida, originating in Georgia and flowing for before terminating in Florida. Background The name is from the Hitchiti language words for yellow river. The Ochlockonee originates south of the town of Sylvester in Worth County in southwest Georgia and empties into Ochlockonee Bay and then Apalachee Bay in Florida. The river forms the western boundaries of Leon County and Wakulla County and eastern boundaries of Gadsden County, Liberty County, and Franklin County in Florida. It flows through the Red Hills, the Jackson Bluff Dam, Talquin State Forest, Lake Talquin State Park and the Apalachicola National Forest, and past Ochlockonee River State Park, where it is tidally influenced and a mixture of fresh, brackish, and salt water, on the way to its terminus in Ochlockonee Bay, which then empties into Apalachee Bay, with tidal influences extending upstream over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wicomico Leon County Florida
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The name Wicomico may refer to the following: *The Wicocomico or Wicomico people, an Algonquian-speaking Native American tribe, part of whom lived in the Tidewater region of Virginia *Wicomico River (other), several rivers tributary to the Chesapeake Bay watershed *Wicomico County, Maryland *, formerly USS ''Choctaw'', a yard tug in the United States Navy *Wicomico High School Wicomico High School (commonly abbreviated "Wi Hi") is a high school located in Salisbury, Wicomico County, Maryland, United States. It is one of four public high schools in Wicomico County along with James M. Bennett High School, Mardela Midd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peninsula
A peninsula (; ) is a landform that extends from a mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides. Peninsulas exist on all continents. The size of a peninsula can range from tiny to very large. The largest peninsula in the world is the Arabian Peninsula. Peninsulas form due to a variety of causes. Etymology Peninsula derives , which is translated as 'peninsula'. itself was derived , or together, 'almost an island'. The word entered English in the 16th century. Definitions A peninsula is usually defined as a piece of land surrounded on most, but not all sides, but is sometimes instead defined as a piece of land bordered by water on three of its sides. A peninsula may be bordered by more than one body of water, and the body of water does not have to be an ocean or a sea. A piece of land on a very tight river bend or one between two rivers is sometimes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Illinoian
The Pre-Illinoian Stage is used by Quaternary geologists for the early and middle Pleistocene glacial and interglacial periods of geologic time in North America from ~2.5–0.2 Ma (million years ago). North America As the oldest stage in the North American regional subdivision of the Quaternary, the Pre-Illinoian precedes the Illinoian Stage. Researchers have identified 11 distinct glacial stages during the Pre-Illinoian Stage. The Pleistocene prior to the Illinoian stage had previously been subdivided into the Nebraskan, Aftonian, Kansan, and Yarmouthian stages (ages). However, detailed studies of these stages revealed that the assumptions and criteria on which they were defined proved to be wrong to such a point that these stages became meaningless in terms of the actual glacial–interglacial record. For example, instead of two glaciations having occurred prior to the Illinoian Stage, researchers found that 11 distinct glaciations had occurred. In addition, what was p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okefenokee Swamp
The Okefenokee Swamp is a shallow, 438,000-acre (177,000 ha), peat-filled wetland straddling the Georgia–Florida line in the United States. A majority of the swamp is protected by the Okefenokee National Wildlife Refuge and the Okefenokee Wilderness. The Okefenokee Swamp is considered to be one of the Seven Natural Wonders of Georgia. The Okefenokee is the largest " blackwater" swamp in North America. The swamp was designated a National Natural Landmark in 1974. Etymology The name Okefenokee is attested with more than a dozen variant spellings of the word in historical literature. Though often translated as "land of trembling earth", the name is likely derived from Hitchiti ''oki fanôːki'' "bubbling water". Origin The Okefenokee was formed over the past 6,500 years by the accumulation of peat in a shallow basin on the edge of an ancient Atlantic coastal terrace, the geological relic of a Pleistocene estuary. The swamp is bordered by Trail Ridge, a strip of eleva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
