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Sunday, January 3, 2010

Locations of ancient flint quarries in Ohio

From Minerals of Ohio, Carlson, Dr Ernest.

Table showing flint occurrences by Age and Formation and where ancient man quarried the stone.
Note the variation in color and physical characteristics of the flint.

Aborginal Flint
quarries in Ohio (Minerals of Ohio, Carlson E, ODNR Bulletin 69 page 15)
System
Group
Formation
or Bed
Flint
Unit
Occurrence
Quarry
Location
County
Township
Pennsylvanian
Monongahela
Fishpot limestone
Fishpot flint
Nodular
flint; light to dark brown, gray with lighter color streaks
Jefferson
Smithfield
Jefferson
Mt
Pleasant
Conemaugh
Brush Creek limestone
Brush Creek flint
sheets;
interbedded with shale; dark gray to black with light gray patches and
streaks
Morgan
York
Perry
Bearfield
Vinton
Madison
Athens

Gallia

Lawrence

Allegheny
Vanport limestone
Vanport
flint
sheets,
lenticular and nodular flint; light colored mottled grayish white or
tan, some brightly colored
Licking
Hopewell
Muskingum
Hopewell
Muskingum
Licking
Plum Run flint
Jackson
Milton
Vinton
Elk
Mahoning
Smith
Stark
Lexington
Zaleski flint
Zaleski
flint
Sheets;
nodular flint; black or dark gray to black; lacks mottling and banding
Vinton
Elk
Vinton
Jackson
Vinton
Madison
Vinton
Richland
Jackson

Pottsville
Upper Mercer
limestone
Upper Mercer
flint
Sheets,
nodules flint; black or dark gray with light gray patches and streaks
Coshocton
Jefferson
Coshocton
Newcastle
Hocking
Green
Muskingum
Falls
Muskingum
Madison
Muskingum
Hopewell
Muskingum
Muskingum
Perry
Clayton
Perry
Pike
Boggs Limestone
Boggs
flint
Sheets; bluish black to black or dark
gray with buff colored streaks
Muskingum
Falls
Devonian

Delaware Limestone
Delaware chert
Lenticular and nodular chert; tan to dark
brown and black; lacks banding
Delaware
(western)
Franklin
(western)
Marion
(eastern)
Siluarian

Bisher Dolomite
Bisher Flint
Interbedded
flint and dolomite, nodular flint; dark gray with light gray bands
Highland
Liberty
Adams
(northern)

Brassfield
Formation
Brassfield
chert
Lenticular and nodular chert; white,
grayish white, or yellow white, with light colored streaks and patches
Adams
(south central)
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