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is one of the original counties formed shortly after the creation of
California in 1850. Colusa was named after two Mexican land grants,
Coluses (1844) and Colus 1845). The name of the county in the
original state legislative act was spelled Colusi, and often
misspelled in newspapers and other places as Coluse. The word is
derived from the name of an Indian tribe living on the west side of
the Sacramento River. In 1854, Colusi soon became Colusa on legal
documents when the county seat moved from Monroeville to Colusa.
Sections of Colusa County were given to Tehama County in 1856
and to Glenn County in 1891.
Butte Co., CA
- Yolo Co.,
CA - Lake
CA - Glenn