The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.

[1] It overlies the Miocene period Santa Margarita Formation.

It preserves fossils dating back to the Neogene period.

This article about a specific stratigraphic formation in California is a stub.

You can help Wikipedia by expanding it.This article related to the Neogene period is a stub.