The Halchidhoma[2] (Maricopa: Xalychidom Piipaa or Xalychidom Piipaash – 'people who live toward the water') are a Native American tribe now living mostly on the Salt River reservation, but formerly native to the area along the lower Colorado River in California and Arizona when first contacted by Europeans.
A system of military alliances and traditional hostilities seems to have prevailed among the relatively warlike tribes of the lower Colorado and Gila rivers.
The Halchidhoma were part of an alliance that also included the Maricopa and Cocopa, among others, and was opposed by the Quechan and Mohave.
In the following decades, some continued on to Lehi on the Salt River and maintained a separate identity, while others stayed and became assimilated to the Maricopa.
Due to war and conflict with European settlers, the Halchidhoma settled in with the Maricopa people, in their current location around Greater Phoenix.