Category:Stratigraphy of the United States by state

• Geologic formations of the United States by state (50 C)
• Geologic groups of the United States by state (44 C)

A

• Stratigraphy of Alabama (2 C, 1 P)
• Stratigraphy of Alaska (2 C, 1 P)
• Stratigraphy of Arizona (2 C, 6 P)
• Stratigraphy of Arkansas (2 C, 1 P)

C

• Stratigraphy of California (2 C, 2 P)
• Stratigraphy of Colorado (2 C, 3 P)
• Stratigraphy of Connecticut (2 C, 1 P)

D

• Stratigraphy of Delaware (1 C, 2 P)

F

• Stratigraphy of Florida (2 C, 1 P)

G

• Stratigraphy of Georgia (U.S. state) (2 C, 1 P)

H

• Stratigraphy of Hawaii (1 C, 1 P)

I

• Stratigraphy of Idaho (2 C, 3 P)
• Stratigraphy of Illinois (2 C, 2 P)
• Stratigraphy of Indiana (2 C, 1 P)
• Stratigraphy of Iowa (2 C, 1 P)

K

• Stratigraphy of Kansas (2 C, 1 P)
• Stratigraphy of Kentucky (2 C, 1 P)

L

• Stratigraphy of Louisiana (2 C, 1 P)

M

• Stratigraphy of Maine (2 C, 1 P)
• Stratigraphy of Maryland (2 C, 1 P)
• Stratigraphy of Massachusetts (1 C, 2 P)
• Stratigraphy of Michigan (2 C, 5 P)
• Stratigraphy of Minnesota (2 C, 2 P)
• Stratigraphy of Mississippi (2 C, 1 P)
• Stratigraphy of Missouri (2 C, 1 P)
• Stratigraphy of Montana (2 C, 3 P)

N

• Stratigraphy of Nebraska (2 C, 1 P)
• Stratigraphy of Nevada (2 C, 3 P)
• Stratigraphy of New Hampshire (1 C, 1 P)
• Stratigraphy of New Jersey (2 C, 2 P)
• Stratigraphy of New Mexico (2 C, 1 P)
• Stratigraphy of New York (state) (2 C, 1 P)
• Stratigraphy of North Carolina (2 C, 2 P)
• Stratigraphy of North Dakota (2 C, 1 P)

O

• Stratigraphy of Ohio (2 C, 1 P)
• Stratigraphy of Oklahoma (2 C, 2 P)
• Stratigraphy of Oregon (2 C, 2 P)

P

• Stratigraphy of Pennsylvania (2 C, 2 P)

R

• Stratigraphy of Rhode Island (1 C, 1 P)

S

• Stratigraphy of South Carolina (2 C, 1 P)
• Stratigraphy of South Dakota (2 C, 1 P)

T

• Stratigraphy of Tennessee (2 C, 1 P)
• Stratigraphy of Texas (2 C, 2 P)

U

• Stratigraphy of Utah (2 C, 4 P)

V

• Stratigraphy of Vermont (1 C, 1 P)
• Stratigraphy of Virginia (2 C, 1 P)

W

• Stratigraphy of Washington (state) (2 C, 2 P)
• Stratigraphy of West Virginia (2 C, 1 P)
• Stratigraphy of Wisconsin (2 C, 2 P)
• Stratigraphy of Wyoming (2 C, 2 P)