Mono County, California

Mono County (MOH-noh) is a county in the U.S. state of California. As of the 2020 census, the population was 13,195, making it the fourth-least populous county in California. The county seat is Bridgeport. The county is located east of the Sierra Nevada between Yosemite National Park and Nevada. Mono County was founded in 1861.

 References 

Category:1861 establishments in California