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Mandan, Hidatsa & Arikara

1100 – present
Native nationNorth America

The corn-trading hub of the northern plains — Lewis & Clark's winter hosts of 1804-05.

The MHA Nation rebuilt above the Garrison Dam floodwaters; Bakken oil now funds the race to save the Mandan language.

Borders in 2026 · drawn from 3 sourced border frames
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Borders over time

The atlas holds 3 border frames for Mandan, Hidatsa & Arikara — the shape you scrub through changes in 1100 · 1837 · 1953.

Further reading

Sources