Template:Montana-stubUnited States > Montana > Carter County
1917--Carter County was created 22 February 1917 from Custer County. County seat: Ekalaka 
Societies and Libraries
Family History Centers
- USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
- Family History Library Catalog
- ↑ The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).