Massacres & mob attacks
Marias Massacre
23 January 1870Heavy Runner's camp on the Marias River, MT
US cavalry attacked the wrong camp - a Piikuni band known to be friendly and sick with smallpox - and killed around 200 people, mostly women, children and the elderly. No one was disciplined.
- People killed
- 173–217
The shape on the map is a reconstruction drawn from historical descriptions, not a surveyed boundary. Follow the sources for authoritative maps.