The claim by the George Gordon First Nation is against the provincial and federal governments.
The band says it should have been consulted about several projects under a treaty land deal signed in August 2008.
It gives as an example BHP Billiton's Jansen potash mine not far from the band's reserve near Punnichy (PUNN'-ih-shy), Sask.
The First Nation alleges BHP Billiton was given exclusive control over potash exploration rights in the region without the band's knowledge.
A spokesman with Saskatchewan's Justice Ministry says the government doesn't believe it has done anything wrong.
(CKRM, The Canadian Press)