Located at 350 Picacho Road in Winterhaven, California, the administration building sits atop Indian Hill overlooking Paradise Casino to the East and the construction of the new Fort Yuma Health Care Center to the North. Here you will find the offices of the President, Vice-President, and the Tribal Council Members. The Tribal Chambers is also located within the building where meetings with the Tribal Council are held. Also located within the administration building are the offices for the Tribal Administrator, Tribal Council Secretary, Comptroller, Human Resources, Payroll, Revenue Distribution, Finance, our Grants Writer/Coordinator and Records Retention. The hours of operation are Monday through Friday, 8:00 a.m. to 12:00 p.m. and 1:00 pm. to 5:00 p.m. The offices are closed between 12:00 p.m. to 1:00 p.m. for lunch break. Physical Address: 350 Picacho Road Winterhaven, CA 92283 Mailing Address: P.O. Box 1899 Yuma, AZ 85366-1899 Phone: (760) 919-3600 Fax: (760) 572-2962