Search results
Results from the WOW.Com Content Network
Shaded relief map of the United States, showing 10 geological provinces The richly textured landscape of the United States is a product of the dueling forces of plate tectonics, weathering and erosion. Over the 4.5 billion-year history of the Earth, tectonic upheavals and colliding plates have raised great mountain ranges while the forces of ...
The term "United States," when used in the geographic sense, refers to the contiguous United States (sometimes referred to as the Lower 48, including the District of Columbia not as a state), Alaska, Hawaii, the five insular territories of Puerto Rico, Northern Mariana Islands, U.S. Virgin Islands, Guam, American Samoa, and minor outlying possessions. [1]
Shaded relief map of the United States, showing 10 geological provinces. The richly textured landscape of the United States is a product of the dueling forces of plate tectonics, weathering and erosion. Over the 4.5 billion-year history of the Earth, tectonic upheavals and colliding plates have raised great mountain ranges while the forces of ...
The physiographic regions of the contiguous United States comprise 8 divisions, 25 provinces, and 85 sections. [1] The system dates to Nevin Fenneman's report Physiographic Divisions of the United States, published in 1916. [2] [3] The map was updated and republished by the Association of American Geographers in 1928. [4]
Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five inhabited territories. The following is a list of ecoregions in the United States as identified by the World Wide Fund for Nature (WWF). The United States is a megadiverse country with a high level of endemism across a wide variety of ecosystems.
The landscape of the North American continent's landscape was shaped by plate tectonics, volcanic activity, and glaciation. The Appalachian Mountains resulted from plate collisions, the Rocky Mountains from the subduction of the Pacific Ocean floor, and the Pacific Northwest and New England from the accretion of microcontinents.
John Brinckerhoff "Brinck" [1] Jackson (September 25, 1909 – August 29, 1996) was a writer, publisher, instructor, and sketch artist in landscape design. Herbert Muschamp, architecture critic of the New York Times, stated that J. B. Jackson was "America's greatest living writer on the forces that have shaped the land this nation occupies."
Landscape was a magazine of human geography founded by J.B. Jackson in 1951 and published three times a year in Berkeley, California until 1999. [1] The magazine's original subtitle was "Human Geography of the Southwest"; this was later dropped. The first five issues consisted largely of Jackson's own essays.