Related Information
Cession Number
398
Nations as named in historic documents
Present-day Nations
Sept. 17, 1851
Oct. 17, 1855
Treaties related via shared date(s)
Historic Maps
Map Name
Thumbnail
![Historic Map of Montana 1](https://tile.loc.gov/image-services/iiif/service:gmd:gmd370m:g3701m:g3701em:gct00002:ca000039/full/200,/0/default.jpg)
Map Name
Thumbnail
![Historic Map of Wyoming 1](https://tile.loc.gov/image-services/iiif/service:gmd:gmd370m:g3701m:g3701em:gct00002:ca000066/full/200,/0/default.jpg)