Territory of Jefferson: Information from Answers.com
Thirty-sixth United States Congress (1861-02-28). "An Act to provide a temporary
Government for the Territory of Colorado" (PDF). ...
www.answers.com/topic/jefferson-territory

File:United States 1861-02-28-1861-03.png - Wikimedia Commons
Jul 16, 2009 ... Description, United States 1861-02-28-1861-03.png. Map of the states and
territories of the United States as it was from February 28 1861 to ...
commons.wikimedia.org/wiki/ File:United_States_1861-02-28-1861-03.png

Colorado: Definition from Answers.com
1861-02-28. http://www.colorado.gov/dpa/doit/archives/territory.pdf. Retrieved
2007-06-12. ^ Early explorers identified the Gunnison River in Colorado as ...
www.answers.com/topic/colorado

File:United States 1861-01-1861-02-04.png - Wikimedia Commons
Jul 16, 2009 ... 1853-03, 1853-12, 1854, 1858, 1859, 1860, 1861-01, 1861-02-04, 1861-02-28,
1861-03, 1861-08, 1862, 1863-02, 1863-03, 1863-06, 1864-05, ...
commons.wikimedia.org/wiki/ File:United_States_1861-01-1861-02-04.png

Post Offices in Kansas
Boulder, Arapahoe, 1859-04-22, 1861-02-28, No longer in Kansas after
establishment of Colorado Territory, Feb. 28, 1861. [The site of Boulder was
never ...
www.kshs.org/genealogists/ places/postoffices.php?county=AR

State of Colorado
Arrappahoe County, Jefferson Territory, (November 1859 - 1861-02-28) was one of
the 12 counties created by the extralegal Territory of Jefferson. ...
www.mycoloradogenealogy.com/index.htm

File:United States 1860-1861-01.png - Wikipedia, the free encyclopedia
... 1859, 1860, 1861-01, 1861-02-04, 1861-02-28, 1861-03, 1861-08, 1862, 1863-02
, 1863-03, 1863-06, 1864-05, 1864-10, 1865, 1866, 1867-01, 1867-03, 1867-10, ...
en.wikipedia.org/wiki/ File:United_States_1860-1861-01.png

File:United States 1846-12-1848-02.png - Wikimedia Commons
Jul 16, 2009 ... 1846-12, 1848-02, 1848-05, 1848-08, 1849, 1850, 1853-03, 1853-12, 1854, 1858
, 1859, 1860, 1861-01, 1861-02-04, 1861-02-28, 1861-03, ...
commons.wikimedia.org/wiki/ File:United_States_1846-12-1848-02.png

User:Buaidh/Territorial evolution of Colorado - Wikipedia, the ...
Jul 29, 2009 ... Twenty days later on 1861-02-28, outgoing U.S. President James Buchanan signed
the Organic Act for the free Territory of Colorado. ...
en.wikipedia.org/wiki/User:Buaidh/ Territorial_evolution_of_Colorado

Today in United States of America History (Part 3)
1861-02-28 - Colorado is organized as a United States territory. 1861-04-25 -
American Civil War: The Union Army arrives in Washington, D.C. ...
www.historyorb.com/countries/usa?p=3