The Coastal Highway entrance to the Cinder Hills Coal Mine can be found to the far north side of the region, just north-west of the Abandoned Lookout.
Cinder Hills Coal Mine is similar to Abandoned Mine No. 3. They both have long and dark tunnels that connect two regions together.
Air temperature inside the mine is quite warm. Also, no animals spawn inside the mine.
The Cinder Hills Coal Mine, like all mines, is abundant in coal. Coal is a highly valuable item that is required to heat the furnace hot enough to forge items like arrowheads, Improvised hatchets, and Improvised knifes.
The mine is not long, however it has many dead ends and is quite tricky to navigate without any light source.