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  2. 42nd parallel north - Wikipedia

    en.wikipedia.org/wiki/42nd_parallel_north

    The 42nd parallel became agreed upon as the northward limit of the Spanish Empire by the Adams–Onís Treaty of 1819 with the United States, which established the parallel as the border between the Viceroyalty of New Spain of the Kingdom of Spain and the western territory of the United States of America from the meridian of the headwaters of ...

  3. List of principal and guide meridians and base lines of the ...

    en.wikipedia.org/wiki/List_of_principal_and...

    Primarily from the United States Government Printing Office Style Manual. [1] State names usually signify only parts of each listed state, unless otherwise indicated. Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, coordinates appear to be in the NAD27 datum.

  4. 42nd parallel south - Wikipedia

    en.wikipedia.org/wiki/42nd_parallel_south

    In Argentina, the 42nd parallel south defines the border between Río Negro Province and Chubut Province. The 42nd parallel south is a circle of latitude that is 42 degrees south of the Earth's equatorial plane. It crosses the Atlantic Ocean, the Indian Ocean, Australasia, the Pacific Ocean and South America.

  5. File:42nd parallel US.svg - Wikipedia

    en.wikipedia.org/wiki/File:42nd_parallel_US.svg

    The following other wikis use this file: Usage on bs.wikipedia.org 42. paralela (sjever) Usage on ca.wikipedia.org Paral·lel 42° nord; Usage on es.wikipedia.org

  6. 42nd parallel - Wikipedia

    en.wikipedia.org/wiki/42nd_parallel

    42nd parallel may refer to: 42nd parallel north, a circle of latitude in the Northern Hemisphere; 42nd parallel south, a circle of latitude in the Southern Hemisphere;

  7. American polyconic projection - Wikipedia

    en.wikipedia.org/wiki/American_polyconic_projection

    In the cartography of the United States, the American polyconic projection is a map projection used for maps of the United States and its regions beginning early in the 19th century. It belongs to the polyconic projection class , which consists of map projections whose parallels are non- concentric circular arcs except for the equator , which ...

  8. Russo-American Treaty of 1824 - Wikipedia

    en.wikipedia.org/wiki/Russo-American_Treaty_of_1824

    The Russo-American Treaty of 1824 (also known as the Convention of 1824) was signed in St. Petersburg between representatives of Russia and the United States on April 17, 1824, ratified by both nations on January 11, 1825 and went into effect on January 12, 1825. The accord contained six articles.

  9. Michigan meridian - Wikipedia

    en.wikipedia.org/wiki/Michigan_meridian

    U.S. Bureau of Land Management map showing the principal meridians in Michigan and Wisconsin The Michigan meridian is clearly visible in the map of Native American land cessions in Michigan The Michigan meridian is the principal meridian (or north–south line) used as a reference in the Michigan Survey , the survey of the U.S. state of ...