YES, I don't see the problem in using this map, but there are more better one's from the past. WHICH SHOW's all the TREATY RIGHTS before they relocated & terminated alot of tribes in the COUNTRY. I would like to know more about what type of history use you need it for. MY Mother is our TRIBAL HISTORIAN. So I am very familiar with alot of Native History not only from my TRIBE the KLAMATh, MODOC & YAHOOSKIN BANDS. but I have lived on many other Reservations, my father used to work for the BIA (Bureau of Indian Affairs) GOVT office AS DID I. Thanks for the message, I totally give you permission. LATER Keep safe my friend, MANY blessings to you & your family. Deb in Portland Oregon.