This website is run by a non profit organization and strives to map Indigenous lands. They work to “map Indigenous territories, treaties, and languages across the world in a way that goes beyond colonial ways of thinking in order to better represent how Indigenous people want to see themselves.”
This map amplifies the voice of Indigenous communities and is a visual representation of their fight for land which was taken from them. You can focus on locally, national, or global communities and narrow your search by territories, language, or treaties.
I think that this resource is a great provocation for discussion about land, ownership, borders, and the right anyone has to any of those.