Gitxsan Nation is one of Canada 's First Nations .
Is a name used when referring to the Office of the Hereditary Chiefs of the Gitxsan , which is the formal governing body of the Gitxsan people .
Gitxsan Nation is one of Canada 's First Nations and is a name used when referring to the Office of the Hereditary Chiefs of the Gitxsan , which is the formal governing body of the Gitxsan people .