Landless Indians are Native American tribes in the USA, regardless of their recognition status, who have no treaty land or reservations. Traditionally these tribes were not federally recognized, but several have received recognition but no lands after the original designation. Many of these tribes are fighting for recognition after being split by the government and have been for well over 100 years.
A large number of these tribes are located in Montana or in states bordering Canada.
Reference 1: http://billingsgazette.com/news/state-and-regional/montana/a-people-with-no-place-story-of-landless-tribe-told/article_ad8fada3-d0ba-51e9-866e-9471b89ccec1.html
Reference 2: http://www.dailykos.com/story/2012/12/13/1169479/-Indians-101-Finding-a-Home