Chats is a former settlement in Lassen County

Lassen County, California

Lassen County is a county located in the northeastern portion of the U.S. state of California. As of the 2010 census, the population was 34,895, up from 33,828 at the 2000 census...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. It was located on the Nevada–California–Oregon Railway 2 miles (3.2 km) east-southeast of Beckwourth Pass

Beckwourth Pass

Beckwourth Pass is the lowest Sierra Crest mountain pass and is located at the Sierra Valley's eastern edge near Chilcoot-Vinton, Plumas County, California. Beckwourth Pass is east of Beckwourth, California, in the Sierra Nevada, and is northwest of Reno, Nevada. The pass carries California State...

 and 3.5 miles (5.6 km) southeast of Summit

Summit, Plumas County, California

Summit is a former settlement in Plumas County, California. It was located on the summit of the Beckwourth Pass east-southeast of Chilcoot.A post office operated at Summit from 1864 to 1897.-References:...

, at an elevation of 4810 feet (1466 m). Chats still appeared on maps as of 1894.

The Chat post office operated from 1885 to 1894, and from 1896 to 1900. The name is of Native American origin.