US Genealogy Map Project
Image provided by "Graphic Maps"
Image provided by "Graphic Maps"
1803 NorthEast corner of NM included in the Louisiana Purchase from France.
1804 Louisiana Purchase organized into the "District of Louisiana" and the
Territory of Orleans (Louisiana).
1805 "District of Louisiana" reorganized as Territory of Louisiana.
1812 Territory of Louisiana reorganized into Missouri Territory (aka The Indian Country).
1848 Treaty with Mexico transfers lands North of the Gila
River (Ariz.) to the U.S. consisting of California, Nevada, Utah,
Western Colorado and New Mexico.
Central Colorado and Eastern New Mexico are claimed by Texas.
1850 New Mexico Territory (Western New Mexico, Arizona and
Nevada-South of 36 degrees 30 min) organized.
1850 Texas borders finalized. Eastern New Mexico added
to the New Mexico Territory.
1853 Gadsden Purchase from Mexico (Southern Arizona and New Mexico),
added to the New Mexico Territory.
1861 ?New Mexico Territory "piece" of Colorado added to the Colorado Territory?
1863 New Mexico Territory reorganized into the Arizona Territory (Arizona)
and the New Mexico Territory (New Mexico).
?Nevada "piece" added to the Nevada Territory?
1912 New Mexico admitted to the Union as 47th State.
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12/1998 M.A.Leonard, Last Update-01/02/2006