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The maximum frost depth observed in the contiguous United States ranges from 0 to 8 feet (2.4 m). [1] Below that depth, the temperature varies, but is always above 0 °C (32 °F). Alternatively, in Arctic and Antarctic locations the freezing depth is so deep that it becomes year-round permafrost, and the term "thaw depth" is used
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The Atlantic Seaboard Fall Line, or Fall Zone, is a 900-mile (1,400 km) escarpment where the Piedmont and Atlantic coastal plain meet in the eastern United States. [2] Much of the Atlantic Seaboard fall line passes through areas where no evidence of faulting is present.
The natural environment of Virginia encompasses the physical geography and biology of the U.S. state of Virginia. Virginia has a total area of 42,774.2 square miles (110,784.67 km 2 ), including 3,180.13 square miles (8,236.5 km 2 ) of water, making it the 35th- largest state by area. [ 1 ]
The Dismal Swamp Canal was authorized by Virginia in 1787 and by North Carolina in 1790. Construction began in 1793 and was completed in 1805. Construction began in 1793 and was completed in 1805. The canal, as well as a railroad constructed through part of the swamp in 1830, enabled the harvest of timber. [ 20 ]
The Eastern Continental Divide (orange line) demarcates two watersheds of the Atlantic Ocean: the Gulf of Mexico watershed and the Atlantic Seaboard watershed. The Eastern Continental Divide , Eastern Divide or Appalachian Divide is a hydrological divide in eastern North America that separates the easterly Atlantic Seaboard watershed from the ...
(Reuters) - Montana legislators on Tuesday rejected an attempt to ban a transgender member of the state House of Representatives from using the women's restroom at the state Capitol, with some ...
At the time of John Smith's explorations of Virginia in the early 17th century, Little Hunting Creek was the site of a settlement of Indians from the Doeg (Dogue) tribe. [6] By the latter part of that century, the land by Little Hunting Creek had come into the hands of John Washington , great-grandfather of George Washington . [ 4 ]