Difference between revisions of "Montana County Creation Dates and Parent Counties"

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{{Note|See an interactive outline map of [http://historical-county.newberry.org/website/Montana/viewer.htm ''Montana Historical Counties''] at Newberry Library site<ref>[http://historical-county.newberry.org/website/Montana/viewer.htm ''Montana Atlas of Historical County Boundaries'', John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.</ref> (Free) Enter a year, '''Refresh Map''', select '''zoom in''', then click on the map to enlarge it.}}
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{{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [http://historical-county.newberry.org/website/Montana/documents/MT_County_Index.htm Boundary Changes] for interesting insights.}}
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{| border="1" width="120%" class="sortable"
 
|-
 
|-
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Name of County'''  
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Name of County'''  
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Date Formed'''  
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Date Formed'''  
 +
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" |'''Boundary<br>Changes'''
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Parent County'''  
 
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Parent County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Progeny County'''
+
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Counties Created by Boundary Changes'''
 
|-
 
|-
 
| [[Beaverhead County, Montana|Beaverhead]]  
 
| [[Beaverhead County, Montana|Beaverhead]]  
| nowrap="nowrap" | 02 Feb 1865
+
| 1865  Feb 02
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#BEAVERHEAD Details]
 
| Montana Territory  
 
| Montana Territory  
 
| none
 
| none
 
|-
 
|-
 
| [[Big Horn County, Montana|Big Horn]]  
 
| [[Big Horn County, Montana|Big Horn]]  
| 13 Jan 1913
+
| 1913  Jan 13  
| nowrap="nowrap" | Rosebud, Yellowstone  
+
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#BIG%20HORN Details]
 +
| Rosebud, Yellowstone  
 
| Tresaure 1919
 
| Tresaure 1919
 
|-
 
|-
 
| [[Blaine County, Montana|Blaine]]  
 
| [[Blaine County, Montana|Blaine]]  
| 29 Feb 1912
+
| 1912  Feb 29  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#BLAINE Details]
 
| Chouteau, Hill  
 
| Chouteau, Hill  
 
| none
 
| none
 
|-
 
|-
 
| [[Broadwater County, Montana|Broadwater]]  
 
| [[Broadwater County, Montana|Broadwater]]  
| 09 Feb 1897
+
| 1897  Feb 09  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#BROADWATER Details]
 
| Jefferson, Meagher  
 
| Jefferson, Meagher  
 
| none
 
| none
 
|-
 
|-
 
| [[Carbon County, Montana|Carbon]]  
 
| [[Carbon County, Montana|Carbon]]  
| 04 Mar 1895
+
| 1895  Mar 04  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#CARBON Details]
 
| Park, Yellowstone  
 
| Park, Yellowstone  
 
| none
 
| none
 
|-
 
|-
 
| [[Carter County, Montana|Carter]]  
 
| [[Carter County, Montana|Carter]]  
| 22 Feb 1917
+
| 1917  Feb 22  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#CARTER Details]
 
| Custer  
 
| Custer  
 
| Powder River 1919
 
| Powder River 1919
 
|-
 
|-
 
| [[Cascade County, Montana|Cascade]]  
 
| [[Cascade County, Montana|Cascade]]  
| 12 Sep 1887
+
| 1887  Sep 12  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#CASCADE Details]
 
| Chouteau, Meagher  
 
| Chouteau, Meagher  
 
| Judith Basin 1920
 
| Judith Basin 1920
 
|-
 
|-
 
| [[Chouteau County, Montana|Chouteau]]  
 
| [[Chouteau County, Montana|Chouteau]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#CHOUTEAU Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Blaine 1912, Cascasde 1887, Hill 1912, Liberty 1920, Pondera 1919, Teton 1893
 
| Blaine 1912, Cascasde 1887, Hill 1912, Liberty 1920, Pondera 1919, Teton 1893
 
|-
 
|-
 
| [[Custer County, Montana|Custer]]  
 
| [[Custer County, Montana|Custer]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#CUSTER Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Carter 1917, Fallon 1913, Prairie 1915, Sheridan 1913, Yellowstone 1883
 
| Carter 1917, Fallon 1913, Prairie 1915, Sheridan 1913, Yellowstone 1883
 
|-
 
|-
 
| [[Daniels County, Montana|Daniels]]  
 
| [[Daniels County, Montana|Daniels]]  
| 30 Aug 1920
+
| 1920  Aug 30  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#DANIELS Details]
 
| Valley, Sheridan  
 
| Valley, Sheridan  
 
| none
 
| none
 
|-
 
|-
 
| [[Dawson County, Montana|Dawson]]  
 
| [[Dawson County, Montana|Dawson]]  
| 15 Jan 1869
+
| 1869  Jan 15  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#DAWSON Details]
 
| Montana Territory  
 
| Montana Territory  
 
| McCone 1919, Richland 1914, Rosebud 1901, Valley 1893, Wibaux 1914
 
| McCone 1919, Richland 1914, Rosebud 1901, Valley 1893, Wibaux 1914
 
|-
 
|-
 
| [[Deer Lodge County, Montana|Deer Lodge]]  
 
| [[Deer Lodge County, Montana|Deer Lodge]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#DEER%20LODGE Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Granite 1893, Silver Bow 1881
 
| Granite 1893, Silver Bow 1881
 
|-
 
|-
 
| Edgerton  
 
| Edgerton  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm# Details]
 
| Montana Territory  
 
| Montana Territory  
 
| renamed Lewis and Clark 1867
 
| renamed Lewis and Clark 1867
 
|-
 
|-
 
| [[Fallon County, Montana|Fallon]]  
 
| [[Fallon County, Montana|Fallon]]  
| 09 Dec 1913
+
| 1913  Dec 09  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#FALLON Details]
 
| Custer  
 
| Custer  
 
| none
 
| none
 
|-
 
|-
 
| [[Fergus County, Montana|Fergus]]  
 
| [[Fergus County, Montana|Fergus]]  
| 12 Mar 1885
+
| 1885  Mar 12  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#FERGUS Details]
 
| Meagher  
 
| Meagher  
 
| Judith Basin 1920, Musselshell 1911, Petroleum 1924
 
| Judith Basin 1920, Musselshell 1911, Petroleum 1924
 
|-
 
|-
 
| [[Flathead County, Montana|Flathead]]  
 
| [[Flathead County, Montana|Flathead]]  
| 06 Feb 1893
+
| 1893  Feb 06  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#FLATHEAD Details]
 
| Missoula  
 
| Missoula  
 
| Lake 1923, Lincoln 1909
 
| Lake 1923, Lincoln 1909
 
|-
 
|-
 
| [[Gallatin County, Montana|Gallatin]]  
 
| [[Gallatin County, Montana|Gallatin]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#GALLATIN Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Park 1887, Yellowstone 1883
 
| Park 1887, Yellowstone 1883
 
|-
 
|-
 
| [[Garfield County, Montana|Garfield]]  
 
| [[Garfield County, Montana|Garfield]]  
| 07 Feb 1919
+
| 1919  Feb 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#GARFIELD Details]
 
| Valley, McCone  
 
| Valley, McCone  
 
| Petroleum 1924
 
| Petroleum 1924
 
|-
 
|-
 
| [[Glacier County, Montana|Glacier]]  
 
| [[Glacier County, Montana|Glacier]]  
| 17 Feb 1919
+
| 1919  Feb 17  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#GLACIER Details]
 
| Teton  
 
| Teton  
 
| none
 
| none
 
|-
 
|-
 
| [[Golden Valley County, Montana|Golden Valley]]  
 
| [[Golden Valley County, Montana|Golden Valley]]  
| 04 Oct 1920
+
| 1920  Oct 04  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#GOLDEN%20VALLEY Details]
 
| Musselshell  
 
| Musselshell  
 
| none
 
| none
 
|-
 
|-
 
| [[Granite County, Montana|Granite]]  
 
| [[Granite County, Montana|Granite]]  
| 02 Mar 1893
+
| 1893  Mar 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#GRANITE Details]
 
| Deer Lodge  
 
| Deer Lodge  
 
| none
 
| none
 
|-
 
|-
 
| [[Hill County, Montana|Hill]]  
 
| [[Hill County, Montana|Hill]]  
| 28 Feb 1912
+
| 1912  Feb 28  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#HILL Details]
 
| Chouteau  
 
| Chouteau  
 
| Blaine 1912, Liberty 1920
 
| Blaine 1912, Liberty 1920
 
|-
 
|-
 
| [[Jefferson County, Montana|Jefferson]]  
 
| [[Jefferson County, Montana|Jefferson]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#JEFFERSON Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Broadwater 1897
 
| Broadwater 1897
 
|-
 
|-
 
| [[Judith Basin County, Montana|Judith Basin]]  
 
| [[Judith Basin County, Montana|Judith Basin]]  
| 10 Dec 1920
+
| 1920  Dec 10  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#JUDITH%20BASIN Details]
 
| Ferguson, Cascade  
 
| Ferguson, Cascade  
 
| none
 
| none
 
|-
 
|-
 
| [[Lake County, Montana|Lake]]  
 
| [[Lake County, Montana|Lake]]  
| 11 May 1923
+
| 1923  May 11  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#LAKE Details]
 
| Flathead, Missoula  
 
| Flathead, Missoula  
 
| none
 
| none
 
|-
 
|-
| nowrap="nowrap" | [[Lewis and Clark County, Montana|Lewis and Clark]]  
+
| [[Lewis and Clark County, Montana|Lewis and Clark]]  
| 20 Dec 1867
+
| 1867  Dec 20  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#LEWIS%20CLARK Details]
 
| renamed from Edgerton  
 
| renamed from Edgerton  
 
| none
 
| none
 
|-
 
|-
 
| [[Liberty County, Montana|Liberty]]  
 
| [[Liberty County, Montana|Liberty]]  
| 11 Feb 1920
+
| 1920  Feb 11  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#LIBERTY Details]
 
| Chouteau, Hill  
 
| Chouteau, Hill  
 
| none
 
| none
 
|-
 
|-
 
| [[Lincoln County, Montana|Lincoln]]  
 
| [[Lincoln County, Montana|Lincoln]]  
| 09 Mar 1909
+
| 1909  Mar 09  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#LINCOLN Details]
 
| Flathead  
 
| Flathead  
 
| none
 
| none
 
|-
 
|-
 
| [[Madison County, Montana|Madison]]  
 
| [[Madison County, Montana|Madison]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MADISON Details]
 
| Montana Territory  
 
| Montana Territory  
 
| none
 
| none
 
|-
 
|-
 
| [[McCone County, Montana|McCone]]  
 
| [[McCone County, Montana|McCone]]  
| 20 Feb1919
+
| 1919  Feb 20  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MCCONE Details]
 
| Dawson, Richland  
 
| Dawson, Richland  
 
| Garfield 1919
 
| Garfield 1919
 
|-
 
|-
 
| [[Meagher County, Montana|Meagher]]  
 
| [[Meagher County, Montana|Meagher]]  
| 16 Nov 1867
+
| 1867  Nov 16  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MEAGHER Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Broadwater 1897, Cascade 1887, Fergus 1885, Sweet Grass 1895, Wheatland 1917, Yellowstone 1883
 
| Broadwater 1897, Cascade 1887, Fergus 1885, Sweet Grass 1895, Wheatland 1917, Yellowstone 1883
 
|-
 
|-
 
| [[Mineral County, Montana|Mineral]]  
 
| [[Mineral County, Montana|Mineral]]  
| 07 Aug 1914
+
| 1914  Aug 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MINERAL Details]
 
| Missoula  
 
| Missoula  
 
| none
 
| none
 
|-
 
|-
 
| [[Missoula County, Montana|Missoula]]  
 
| [[Missoula County, Montana|Missoula]]  
| 02 Feb 1865
+
| 1865  Feb 02  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MISSOULA Details]
 
| Montana Territory  
 
| Montana Territory  
 
| Flathead 1893, Lake 1923, Mineral 1914, Powell 1901, Ravalli 1893, Sanders 1905
 
| Flathead 1893, Lake 1923, Mineral 1914, Powell 1901, Ravalli 1893, Sanders 1905
 
|-
 
|-
 
| [[Musselshell County, Montana|Musselshell]]  
 
| [[Musselshell County, Montana|Musselshell]]  
| 11 Feb 1911
+
| 1911  Feb 11  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#MUSSELSHELL Details]
 
| Fergus, Yellowstone  
 
| Fergus, Yellowstone  
 
| Golden Valley 1920
 
| Golden Valley 1920
 
|-
 
|-
 
| [[Park County, Montana|Park]]  
 
| [[Park County, Montana|Park]]  
| 23 Feb 1887
+
| 1887  Feb 23  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#PARK Details]
 
| Gallatin  
 
| Gallatin  
 
| Carbon 1895, Sweet Grass 1895
 
| Carbon 1895, Sweet Grass 1895
 
|-
 
|-
 
| [[Petroleum County, Montana|Petroleum]]  
 
| [[Petroleum County, Montana|Petroleum]]  
| 24 Nov 1924
+
| 1924  Nov 24  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#PETROLEUM Details]
 
| Fergus, Garfield  
 
| Fergus, Garfield  
 
| none
 
| none
 
|-
 
|-
 
| [[Phillips County, Montana|Phillips]]  
 
| [[Phillips County, Montana|Phillips]]  
| 05 Feb 1915
+
| 1915  Feb 05  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#PHILLIPS Details]
 
| Valley  
 
| Valley  
 
| none
 
| none
 
|-
 
|-
 
| [[Pondera County, Montana|Pondera]]  
 
| [[Pondera County, Montana|Pondera]]  
| 17 Feb 1919
+
| 1919  Feb 17  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#PONDERA Details]
 
| Chouteau  
 
| Chouteau  
 
| none
 
| none
 
|-
 
|-
 
| [[Powder River County, Montana|Powder River]]  
 
| [[Powder River County, Montana|Powder River]]  
| 07 Mar 1919
+
| 1919  Mar 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#POWDER%20RIVER Details]
 
| Custer  
 
| Custer  
 
| none
 
| none
 
|-
 
|-
 
| [[Powell County, Montana|Powell]]  
 
| [[Powell County, Montana|Powell]]  
| 31 Jan 1901
+
| 1901  Jan 31  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#POWELL Details]
 
| Missoula  
 
| Missoula  
 
| none
 
| none
 
|-
 
|-
 
| [[Prairie County, Montana|Prairie]]  
 
| [[Prairie County, Montana|Prairie]]  
| 05 Feb 1915
+
| 1915  Feb 05  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#PRAIRIE Details]
 
| Custer  
 
| Custer  
 
| none
 
| none
 
|-
 
|-
 
| [[Ravalli County, Montana|Ravalli]]  
 
| [[Ravalli County, Montana|Ravalli]]  
| 16 Feb 1893
+
| 1893  Feb 16  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#RAVALLI Details]
 
| Missoula  
 
| Missoula  
 
| none
 
| none
 
|-
 
|-
 
| [[Richland County, Montana|Richland]]  
 
| [[Richland County, Montana|Richland]]  
| 27 May 1914
+
| 1914  May 27  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#RICHLAND Details]
 
| Dawson  
 
| Dawson  
 
| McCone 1919, Roosevelt 1919
 
| McCone 1919, Roosevelt 1919
 
|-
 
|-
 
| [[Roosevelt County, Montana|Roosevelt]]  
 
| [[Roosevelt County, Montana|Roosevelt]]  
| 18 Feb 1919
+
| 1919  Feb 18  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#ROOSEVELT Details]
 
| Valley, Richland  
 
| Valley, Richland  
 
| none
 
| none
 
|-
 
|-
 
| [[Rosebud County, Montana|Rosebud]]  
 
| [[Rosebud County, Montana|Rosebud]]  
| 11 Feb 1901
+
| 1901  Feb 11  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#ROSEBUD Details]
 
| Dawson  
 
| Dawson  
 
| Big Horn 1913
 
| Big Horn 1913
 
|-
 
|-
 
| [[Sanders County, Montana|Sanders]]  
 
| [[Sanders County, Montana|Sanders]]  
| 07 Feb 1905
+
| 1905  Feb 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#SANDERS Details]
 
| Missoula  
 
| Missoula  
 
| none
 
| none
 
|-
 
|-
 
| [[Sheridan County, Montana|Sheridan]]  
 
| [[Sheridan County, Montana|Sheridan]]  
| 24 Mar 1913
+
| 1913  Mar 24  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#SHERIDAN Details]
 
| Custer  
 
| Custer  
 
| Daniels 1920
 
| Daniels 1920
 
|-
 
|-
 
| [[Silver Bow County, Montana|Silver Bow]]  
 
| [[Silver Bow County, Montana|Silver Bow]]  
| 16 Feb 1881
+
| 1881  Feb 16  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#SILVER%20BOW Details]
 
| Deer Lodge  
 
| Deer Lodge  
 
| none
 
| none
 
|-
 
|-
 
| [[Stillwater County, Montana|Stillwater]]  
 
| [[Stillwater County, Montana|Stillwater]]  
| 24 Mar 1913
+
| 1913  Mar 24  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#STILLWATER Details]
 
| Sweet Grass, Yellowstone  
 
| Sweet Grass, Yellowstone  
 
| none
 
| none
 
|-
 
|-
 
| [[Teton County, Montana|Teton]]  
 
| [[Teton County, Montana|Teton]]  
| 07 Feb 1893
+
| 1893  Feb 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#TETON Details]
 
| Chouteau  
 
| Chouteau  
 
| Glacier 1919, Toole 1914
 
| Glacier 1919, Toole 1914
 
|-
 
|-
 
| [[Toole County, Montana|Toole]]  
 
| [[Toole County, Montana|Toole]]  
| 07 May 1914
+
| 1914  May 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#TOOLE Details]
 
| Teton  
 
| Teton  
 
| none
 
| none
 
|-
 
|-
 
| [[Treasure County, Montana|Treasure]]  
 
| [[Treasure County, Montana|Treasure]]  
| 07 Feb 1919
+
| 1919  Feb 07  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#TREASURE Details]
 
| Big Horn  
 
| Big Horn  
 
| none
 
| none
 
|-
 
|-
 
| [[Valley County, Montana|Valley]]  
 
| [[Valley County, Montana|Valley]]  
| 06 Feb 1893
+
| 1893  Feb 06  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#VALLEY Details]
 
| Dawson  
 
| Dawson  
 
| Daniels 1920, Garfield 1919, Phillips 1915, Roosevelt 1919
 
| Daniels 1920, Garfield 1919, Phillips 1915, Roosevelt 1919
 
|-
 
|-
 
| [[Wheatland County, Montana|Wheatland]]  
 
| [[Wheatland County, Montana|Wheatland]]  
| 22 Feb 1917
+
| 1917  Feb 22  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#WHEATLAND Details]
 
| Meagher, Sweet Grass  
 
| Meagher, Sweet Grass  
 
| none
 
| none
 
|-
 
|-
 
| [[Wibaux County, Montana|Wibaux]]  
 
| [[Wibaux County, Montana|Wibaux]]  
| 17 Aug 1914
+
| 1914  Aug 17  
 +
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#WIBAUX Details]
 
| Dawson  
 
| Dawson  
 
| none
 
| none
 
|-
 
|-
 
| [[Yellowstone County, Montana|Yellowstone]]  
 
| [[Yellowstone County, Montana|Yellowstone]]  
| 26 Feb 1883
+
| 1883  Feb 26  
| nowrap="nowrap" | Gallatin, Meagher, Custer  
+
| [http://publications.newberry.org/ahcbp/documents/MT_Individual_County_Chronologies.htm#YELLOWSTONE Details]
 +
| Gallatin, Meagher, Custer  
 
| Rosebud 1913, Carbon 1895, Sweet Grass 1895, Musselshell 1911, Stillwater 1913
 
| Rosebud 1913, Carbon 1895, Sweet Grass 1895, Musselshell 1911, Stillwater 1913
 
|}
 
|}
 
[[Category: United States County Creations]]
 

Revision as of 16:53, 19 June 2014

0

Name of County Date Formed Boundary
Changes
Parent County Counties Created by Boundary Changes
Beaverhead 1865 Feb 02 Details Montana Territory none
Big Horn 1913 Jan 13 Details Rosebud, Yellowstone Tresaure 1919
Blaine 1912 Feb 29 Details Chouteau, Hill none
Broadwater 1897 Feb 09 Details Jefferson, Meagher none
Carbon 1895 Mar 04 Details Park, Yellowstone none
Carter 1917 Feb 22 Details Custer Powder River 1919
Cascade 1887 Sep 12 Details Chouteau, Meagher Judith Basin 1920
Chouteau 1865 Feb 02 Details Montana Territory Blaine 1912, Cascasde 1887, Hill 1912, Liberty 1920, Pondera 1919, Teton 1893
Custer 1865 Feb 02 Details Montana Territory Carter 1917, Fallon 1913, Prairie 1915, Sheridan 1913, Yellowstone 1883
Daniels 1920 Aug 30 Details Valley, Sheridan none
Dawson 1869 Jan 15 Details Montana Territory McCone 1919, Richland 1914, Rosebud 1901, Valley 1893, Wibaux 1914
Deer Lodge 1865 Feb 02 Details Montana Territory Granite 1893, Silver Bow 1881
Edgerton 1865 Feb 02 Details Montana Territory renamed Lewis and Clark 1867
Fallon 1913 Dec 09 Details Custer none
Fergus 1885 Mar 12 Details Meagher Judith Basin 1920, Musselshell 1911, Petroleum 1924
Flathead 1893 Feb 06 Details Missoula Lake 1923, Lincoln 1909
Gallatin 1865 Feb 02 Details Montana Territory Park 1887, Yellowstone 1883
Garfield 1919 Feb 07 Details Valley, McCone Petroleum 1924
Glacier 1919 Feb 17 Details Teton none
Golden Valley 1920 Oct 04 Details Musselshell none
Granite 1893 Mar 02 Details Deer Lodge none
Hill 1912 Feb 28 Details Chouteau Blaine 1912, Liberty 1920
Jefferson 1865 Feb 02 Details Montana Territory Broadwater 1897
Judith Basin 1920 Dec 10 Details Ferguson, Cascade none
Lake 1923 May 11 Details Flathead, Missoula none
Lewis and Clark 1867 Dec 20 Details renamed from Edgerton none
Liberty 1920 Feb 11 Details Chouteau, Hill none
Lincoln 1909 Mar 09 Details Flathead none
Madison 1865 Feb 02 Details Montana Territory none
McCone 1919 Feb 20 Details Dawson, Richland Garfield 1919
Meagher 1867 Nov 16 Details Montana Territory Broadwater 1897, Cascade 1887, Fergus 1885, Sweet Grass 1895, Wheatland 1917, Yellowstone 1883
Mineral 1914 Aug 07 Details Missoula none
Missoula 1865 Feb 02 Details Montana Territory Flathead 1893, Lake 1923, Mineral 1914, Powell 1901, Ravalli 1893, Sanders 1905
Musselshell 1911 Feb 11 Details Fergus, Yellowstone Golden Valley 1920
Park 1887 Feb 23 Details Gallatin Carbon 1895, Sweet Grass 1895
Petroleum 1924 Nov 24 Details Fergus, Garfield none
Phillips 1915 Feb 05 Details Valley none
Pondera 1919 Feb 17 Details Chouteau none
Powder River 1919 Mar 07 Details Custer none
Powell 1901 Jan 31 Details Missoula none
Prairie 1915 Feb 05 Details Custer none
Ravalli 1893 Feb 16 Details Missoula none
Richland 1914 May 27 Details Dawson McCone 1919, Roosevelt 1919
Roosevelt 1919 Feb 18 Details Valley, Richland none
Rosebud 1901 Feb 11 Details Dawson Big Horn 1913
Sanders 1905 Feb 07 Details Missoula none
Sheridan 1913 Mar 24 Details Custer Daniels 1920
Silver Bow 1881 Feb 16 Details Deer Lodge none
Stillwater 1913 Mar 24 Details Sweet Grass, Yellowstone none
Teton 1893 Feb 07 Details Chouteau Glacier 1919, Toole 1914
Toole 1914 May 07 Details Teton none
Treasure 1919 Feb 07 Details Big Horn none
Valley 1893 Feb 06 Details Dawson Daniels 1920, Garfield 1919, Phillips 1915, Roosevelt 1919
Wheatland 1917 Feb 22 Details Meagher, Sweet Grass none
Wibaux 1914 Aug 17 Details Dawson none
Yellowstone 1883 Feb 26 Details Gallatin, Meagher, Custer Rosebud 1913, Carbon 1895, Sweet Grass 1895, Musselshell 1911, Stillwater 1913
  1. [http://historical-county.newberry.org/website/Montana/viewer.htm Montana Atlas of Historical County Boundaries, John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.