Cool, formerly known as Cave Valley, is a small town in El Dorado County, California,[1] about 40 miles (64 km) from Sacramento, the state capital.

It is built on State Route 49 between Auburn and Placerville on a hill at an elevation more than 1,500 feet (450 m) in an area full of trees, trails, camping, and other recreational activities.

[3] Penobscot Public House, established in 1850, was a way station and stage coach stop during the days of the Gold Rush.

[6] Federally, Cool is in California's 4th congressional district, represented by Democrat Mike Thompson.

[8] Residents are zoned to Golden Sierra Junior Senior High School for grades 7–12.