enow.com Web Search

  1. Ad

    related to: us geological survey maps geography quiz game free online game chicago tribune

Search results

  1. Results from the WOW.Com Content Network
  2. Cartography of the United States - Wikipedia

    en.wikipedia.org/wiki/Cartography_of_the_United...

    The cartography of the United States is the history of surveying and creation of maps of the United States. Maps of the New World had been produced since the 16th century. The history of cartography of the United States begins in the 18th century, after the declared independence of the original Thirteen Colonies on July 4, 1776 , during the ...

  3. United States Geological Survey - Wikipedia

    en.wikipedia.org/.../United_States_Geological_Survey

    The United States remains virtually the only developed country in the world without a standardized civilian topographic map series in the standard 1:25,000 or 1:50,000 metric scales, making coordination difficult in border regions (the U.S. military does issue 1:50,000 scale topo maps of the continental United States, though only for use by ...

  4. Geology of the United States - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_United_States

    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 ...

  5. The National Map - Wikipedia

    en.wikipedia.org/wiki/The_National_Map

    The National Map Corps consists of volunteers who devote some of their time to provide cartographic information to the U.S. Geological Survey. The only requirements to participate are having access to the Internet and a current familiarity with the area being mapped. [6] This data is used to update The National Map.

  6. Geological survey - Wikipedia

    en.wikipedia.org/wiki/Geological_survey

    A geological survey is the systematic investigation of the geology beneath a given piece of ground for the purpose of creating a geological map or model.Geological surveying employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing ...

  7. Geology of North America - Wikipedia

    en.wikipedia.org/wiki/Geology_of_North_America

    Geologic map of North America. The geology of North America is a subject of regional geology and covers the North American continent, the third-largest in the world. Geologic units and processes are investigated on a large scale to reach a synthesized picture of the geological development of the continent.

  8. United States Geological and Geographical Survey of the ...

    en.wikipedia.org/wiki/United_States_Geological...

    The scope of the survey eventual grew to include all the American territories adjacent to the Rocky Mountains encompassing hundreds of thousands of square miles. The survey over its existence was headed by Dr. Ferdinand Vandeveer Hayden who published a number of reports between 1867 and 1883 on the region’s geography , geology , topography ...

  9. United States Geological Survey Library - Wikipedia

    en.wikipedia.org/wiki/United_States_Geological...

    Today, the United States Geological Survey Library's users have access to over 1.7 million items: over 980,000 books and journals, over 600,000 maps, over 8,000 electronic media items (DVDs, CDs), and subscribes to over 113,000 electronic journal titles and eBooks. Materials include USGS publications, as well as those produced by state and ...

  1. Ad

    related to: us geological survey maps geography quiz game free online game chicago tribune