Four Corners Formation in eastern Kentucky, Tennessee, Virginia and West Virginia

Hindman/Hazard No. 9 coal zone

Formation

Princess District

Licking River District

Southwestern District

Hazard District

Big Sandy District

Upper Cumberland River District

Tennessee

Virginia

West Virginia
new terminology

Middlesboro Subdistrict

Harlan Subdistrict

Princess

?

?

Stoney Fork Member

Stoney Fork Member

?

-

?

?

eroded?

Kanawha Black Flint

Four Corners

lower part of Princess No. 4, Broas or Torchlight coal zone

lower part of Broas coal zone

Hindman coal bed

lower part of Broas coal zone

Hindman or Hazard No. 9 coal

lower part of Broas coal zone

Hindman, Hazard No. 9 or Helton coal

lower part of Broas coal zone

eroded

Sam's Ridge or middle part of Black Mountain coal zone

?

?

lower Stockton coal zone

-

?

?

Bulan shale member

Bulan shale member

?

-

?

?

?

?

Peach Orchard coal zone

Formation

Princess District

Licking River District

Southwestern District

Hazard District

Big Sandy District

Upper Cumberland River District

Tennessee

Virginia

West Virginia
new terminology

Middlesboro Subdistrict

Harlan Subdistrict

Four Corners

?

?

Bulan shale member

Bulan shale member

?

-

?

Princess No. 3, Mudseam, Nickell or PeachOrchard coal zone

Sebastian, Fugate or Hatcher coal

Peach Orchard coal zone

Hazard No. 8 coal zone

Hazard No. 8, Francis, Sebastian or Fugate coal zone

Peach Orchard coal zone

Peach Orchard , Hatcher or Mudseam coal zone

?

lower part of Black Mountain or Bluff Spur coal zone

?

No. 12 and 13 coal zones

Coalburg coal zone

?

member O

member O

Mudseam, Nickell, Oakley, Lenox or Hazard No. 7 coal zone

Hazard No. 7 coal zone

Hazard No. 7, Nickell, Flag or Oakley coal zone

High Splint coal zone

Big Wheel coal zone

?

Arnett Member

Arnett Member

Arnett Member

Arnett Member

?

?

?

?

?

Hazard coal zone

Formation

Princess District

Licking River District

Southwestern District

Hazard District

Big Sandy District

Upper Cumberland River District

Tennessee

Virginia

West Virginia
new terminology

Middlesboro Subdistrict

Harlan Subdistrict

Four Corners

?

Arnett Member

Arnett Member

Arnett Member

Arnett Member

Hazard coal

Hazard or Prater coal zone

Hazard or Lea coal zone

Hazard or Prater coal zone

Hazard or Black Gem coal zone

Red Springs coal

Morris coal zone

No. 11 coal

upper Winifrede coal zone

Index or Adele coal

Hazard No. 5A, No. 6, Prater, Adele or Leatherwood coal

Braden Mountain coal

member N

Haddix coal zone

Formation

Princess District

Licking River District

Southwestern District

Hazard District

Big Sandy District

Upper Cumberland River District

Tennessee

Virginia

West Virginia
new terminology

Middlesboro Subdistrict

Harlan Subdistrict

Four Corners

member N

Haddix coal zone

Colvin coal

Haddix or Meatscaffold coal zone

Haddix or Meatscaffold coal zone

Colvin coal

Haddix coal zone

Haddix coal zone

Low Splint coal zone

Lower Highsplint coal

Red Ash coal

?

lower Winifred ecoal zone

Trace Fork coal

Trace Fork coal

Trace Fork coal

Reynolds Sandstone Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Magoffin Member

Winifrede Shale Member