Native Indian Tribes of North America Map. Postcard. This postcard map shows the location of Native Indian tribes prior to the arrival and dislocation by Europeans. An indispensable aid to American Indian Studies. Lists many of the 500 nations and their approximate territory before the invasion of the white man. The following information is NOT included on this postcard: Estimates on the American Indian population before European contact range from between 2 and 18 million. By 1890, only 250,000 native Americans. remained. The total death toll has been estimated at around 100 million American Indians from the time of Columbus' arrival to the end of the Indian Wars 400 years later.