Mineral Resources
Online Spatial Data
Geology
by state
Michigan geologic units
Geologic units in Antrim county, Michigan
Ellsworth Shale
(Late Devonian)
at surface, covers 62 % of this area
Ellsworth Shale
Antrim Shale
(Late Devonian)
at surface, covers 17 % of this area
Antrim Shale
Coldwater Shale
(Mississippian)
at surface, covers 14 % of this area
Coldwater Shale
Traverse Group
(Middle Devonian)
at surface, covers 5 % of this area
Traverse Group
Bedford Shale
(Late Devonian)
at surface, covers 2 % of this area
Bedford Shale