10 Oldest Indigenous Groups in the America 

10. Crow Tribe First Appeared: Unclear, but settled in Montana in the mid-fifteenth century Location: Great Plains Language: Crow/ Part of the Siouan language family and English

9. Dane-zaa First Appeared: Unknown, but inhabited parts of Canada prior to the nineteenth century Location: Throughout Canada, but mostly Alberta and British Columbia Language: Athabaskan

8. Arapaho First Appeared: Unknown Location: Eastern plains of Wyoming and Colorado Language: Arapaho/Algonquian language family

7. Mojave First Appeared: Unknown, but prior to the sixteenth century Location: Arizona and California Language: Yuman/ Hokan language family

6. Guaraní Peoples First Appeared: Unknown, but prior to the sixteenth century Location: Paraguay, Argentina, Bolivia and Brazil Language: Guaraní

5. Arikara/Sahnish First Appeared: Unknown Location: North American Plains Language: Arikara/Caddoan Language Family

4. Yokut First Appeared: Unknown, but most likely have ancient origins Location: San Joaquin Valley, CA Language: Multiple from the Tenutian language family

3. Zuni First Appeared: 2,500 BCE Location: New Mexico Language: Penutian

2. Ancestral Puebloans First Appeared: c. 10,000 BCE Location: American Southwest Language: Multiple

1. Clovis First Appeared: c. 11,500 BCE Location: United States, Mexico and Central America Language: Multiple