|96 enrolled members|
|Regions with significant populations|
|United States ( California)|
|English, Western Mono|
|traditional tribal religion, formerly Ghost Dance|
|Related ethnic groups|
|other Mono tribes|
The Big Sandy Rancheria of Mono Indians of California is a ranchería and federally recognized tribe of Western Mono Indians (Monache) is located in Fresno County, California. As of the 2010 Census the population was 118. In 1909, the Bureau of Indian Affairs (BIA) bought 280 acres of land for San Joaquin or best known as the Big Sandy Band of Western Mono Indians.
The Big Sandy Rancheria, located just outside the community of Auberry, in Fresno County, is 228 acres (0.92 km2) large. In 1990, 38 tribal members lived on the reservation. In 2009, approximately 158 out of 495 enrolled tribal members lived on the reservation. The reservation is very secluded, and the tribal headquarters is situated within a ring of houses.
In 1909, the BIA purchased 280 acres of land for Big Sandy Band of Western Mono Indians. It was bought in order to provide the tribe with a secure home where they could grow their food and sale, have cattle, and be free from attacks by non-Indians. In 1958. congress enacted the California Rancheria Termination Act which affected 41 California Rancherias, which also included Big Sandy Rancheria. It terminated the trust status of the lands and Indian status. In 1966, Big Sandy Rancheria organized the BSR Association because of this act. The BSR Association was formed so they could receive common property and be able to approve the distribution plan made by the BIA for the termination of the Rancheria. The plan said that a portion of the Rancheria was given to the American Baptist Home Mission Society as part of the land exchange done by the society and BIA. The distribution plan did not make any plans for improving the Rancheria housing, water, sanitation, or irrigation. The tribe approved the BIA's distribution plan without knowing their rights and obligations, advantages and disadvantages of agreeing with the termination, or even other options they could have done instead. After the approval of the distribution plan by Big Sany members, the BIA revoked their status with the federal government. The BIA never fulfilled the rest of the agreements of the Rancheria Act other than preparing the distribution plan itself. The Rancheria was terminated and its members were ineligible for federal services provided by the BIA. The termination of the Rancheria was the most damaging and had a big impact on the social and economic development of the tribe. This was unfortunate because during their termination the federal government was providing programs to directly assist the Indian tribes. During this time housing conditions, low income, high unemployment, alcohol and drug abuse, and low education attainment worsened. These problems are still seen today. In 1983, the United States District Court Action officially restored the BSR as an Indian Country and the people of the tribe were once again federally recognized Indians. Members holding land in accordance with the BIA distribution plan were able to return their land to trust status whenever they wanted and also the Association's properties. 
Government and administration
Big Sandy Rancheria's tribal headquarters is located in Auberry, California. They are governed by a democratically elected, five-person tribal council. General Council Meetings are the last Sunday of each quarter and Tribal Council meetings are held on the last Wednesday of each month.
As of 2017 their chairperson is Elizabeth D. Kipp and their Vice Chairperson is Miles Baty.Patricia Soto is treasurer, Regina Riley is Secretary, and Sharon Baty Simpson is Member at Large. Their tribal administration has three departments: Family activities, Head Start, and Finance. James Collins is their tribal administrator, the family activities director is Alena Dondero, the Head Start director is Johanna Leal, and Leann Anguiano is their Finance manager. 
Economic development and Enterprises
They operate BSR Fuel Distribution in Auberry, CA. They sell diesel and gasoline products. BSR fuel distribution practices nation to nation trade and thus strengthens tribal relationships. It allows tribes and rancherias to buy fuel products and transact directly with one sovereign Native American government to another. This form of trade prevents state interference and thus not pay state taxes on fuel products.  Advantages of trading with other tribes help Big Sandy rancheria keep their tax revenue funds for their own reservation and people. The funds are used to help the community with programs such as healthcare/ medical, elder care, native education programs, hardship funds, housing, and the tribal's infrastructure. The programs and services that Big Sandy Rancheria offers their tribal members are to help them grow and achieve self-sufficiency.
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- Eargle, 88
- Pritzker, 136
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- Staff, Website Services & Coordination. "2010 Census Interactive Population Map (Text Version) - U.S. Census Bureau". www.census.gov.
- "Welcome to Big Sandy". Big Sandy Rancheria. Big Sandy Rancheria. Retrieved 19 March 2017.
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- "Big Sandy Rancheria History". Big Sandy Rancheria. Big Sandy Rancheria. Retrieved 20 March 2017.
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- "BSR Fuel Distribution". BSR Fuels. BSR Fuel Distribution. Retrieved 16 March 2017.
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- Pritzker, Barry M. A Native American Encyclopedia: History, Culture, and Peoples. Oxford: Oxford University Press, 2000. ISBN 978-0-19-513877-1.
- Big Sandy Rancheria of Western Mono Indians, official website