Omaha Tribe Flag
The Omaha are a federally recognized Native American nation which lives on the Omaha Reservation in northeastern Nebraska and western Iowa, United States. They migrated to the upper Missouri area and the Plains by the late 17th century from earlier locations in the Ohio River Valley. The Omaha speak a Siouan language of the Dhegihan branch that is very similar to that spoken by the Ponca. About 1770, the Omaha became the first tribe on the Northern Plains to adopt equestrian culture.