The Cortina Rancheria is an Indian reservation in Colusa County, California, at an elevation of 1,312 feet (400 m). The rancheria is 640 acres large in area.It is located about 70 miles northwest of Sacramento and 15 miles west of Arbuckle, California. As of the 2010 Census the population was 21.https://www.census.gov/2010census/popmap/ipmtext.php?fl=0780
