The Treaty Four Reserve Grounds 77 are an Indian reserve in Saskatchewan, Canada, shared by 33 band governments from Saskatchewan and Manitoba.^[1][3] The Reserve Grounds are located adjacent to and west of Fort Qu'Appelle. In the 2016 Canadian Census, they recorded a population of 15 living in 6 of their 8 total private dwellings.^[2]

All bands are signatories to Treaty 4. This Reserve may belong to Assiniboine Chief Long Lodge #77, who was a treaty signatory chief to Treaty 4 in 1877 at Cypress Hills. Further this land was designated to be shared by all Treaty 4 bands in 1996 to commemorate the signing of the Treaty Land Entitlement agreements between First Nation and the Provincial and Federal Governments. It was given the #77 after this.

• List of Indian reserves in Saskatchewan