Colorado River Indian Tribes


The Colorado River Indian Tribes are comprised of the Hopi, Navajo, Mohave and Chemehuevi and are located on the Colorado River Indian Reservation in Southwestern Arizona.



Cooperative Extension, the outreach arm of the University of Arizona, is “taking the university to the people.” The faculty and staff in the La Paz County Cooperative Extension office in Southwestern Arizona are part of a non-formal education network bringing research-based information into communities to help people improve their lives.


Agriculture and natural resource management

Extension agents have been involved in numerous efforts to support agriculture and natural resource management, including educational field days and demonstration trials. These events have helped identify problems facing the production of established crops (alfalfa, cotton, seed crops and vegetables) and to determine appropriate solutions. Ongoing trials on Tribal land have provided producers with information on alternative cotton crop varieties that are suited to the unique conditions found in the low deserts of Arizona. Farm and resource management strategies have been developed to help protect available soil, nutrient and water resources on the Reservation as part of a cooperative effort that includes a variety of organizations.

Health and nutrition

Health and Nutrition programming is combined with the agriculture and 4-H programs to promote healthier lifestyles and increased physical activity. Although food and nutrition assistance programs have helped reduce nutritional deficiencies, improving access to healthy and nutritious food for low income people remains a challenge. Obesity, heart disease and diabetes are major issues of concern on the Reservation and Extension is committed to helping address these challenges.

4-H Youth Programming

The program has been focused on helping youth acquire skills and knowledge for decision making that promotes healthy lifestyles and the development of productive and ethical behavioral patterns. 4-H Youth Development programs have existed in La Paz County and on the Reservation for a very long time and continue to thrive. Programming includes nutrition, outdoor discovery, and technology as well as the horse program. In each of these areas youth gain valuable knowledge and skills in the areas of personal responsibility, ethical behavior, and community involvement, providing a framework for a productive adult life that will benefit the community as a whole.

Irrigation water measurement

Agriculture on the Colorado River Indian Reservation is predominately flood irrigated with water delivered from the Colorado River via an extensive irrigation ditch system. In recent years, it has become increasingly important to measure and account for individual and total irrigation water use. Extension partnered with the Tribes, the USDA Natural Resources Conservation Service, Parker Valley Resource Conservation District, Bureau of Reclamation, Bureau of Indian Affairs and FFA youth to construct an irrigation water measurement educational site to provide workshops and training on methods and the importance of water measurement.

COVID-19 Activities

  • Distributed face masks through food banks, soup kitchens and crisis shelters.
  • Worked with local 4-H leaders to purchase personal protective equipment (PPE) and cleaning supplies and donated these to other tribal communities affected by the virus.
  • Provided hand sanitizers for use in tribal offices.
  • Donated produce (watermelons, tomatoes, apples, bell peppers) from various garden projects to tribal employees who are front-line/essential workers.
  • Provided vegetable seeds and gardening information to residents to encourage backyard gardening during the stay-at-home order.
  • Worked virtually with 4-H youth to complete and collect their record books.
  • Provided virtual training for 4-H youth who qualified to become ambassadors and members of state-level committees.
  • Provided technical support for gardening webinars.
  • Addressed gardening questions sent via e-mails, text messages and social media.


Contact Information

Adonis Alamban – Extension Educator

Phone Number