Breathitt Formation

The Breathitt Formation is a geologic formation in Kentucky which preserves fossils dating back to the Pennsylvanian period.^[2]

Ironstone from the Breathitt Formation along Interstate 64 in Kentucky

Breathitt Formation
Stratigraphic range: Early to Middle Pennsylvanian
Type	Sedimentary
Location
Region	Kentucky (extending into northern Tennessee and southwestern West Virginia)
Country	United States
Type section
Named for	Breathitt County, Kentucky
Named by	Marius R. Campbell (1898)[1]

See also

• List of fossiliferous stratigraphic units in Kentucky