Geology Facts About Utah's National Parks

A = Arches National Park C = Canyonlands National Park H = Hovenweep National Monument N = Natural Briges National Monument

Area
Found
Name of
Rock Strata
Geologic
Period

Millions
of Yrs
Ago

Nearby

Abajo Mtns.
Henrys Mtns.
La Sal Mtns.

Tertiary

1.6
.
65

Nearby
Mesa Verde Group Cretaceous

65

.

144

A
Mancos Shale
A,H
Dakota Sandstone
A,H
Cedar Mtn/Burro Cyn
A
Morrison Formation Jurassic

144

.

.

208

A
Entrada Sandstone
A,C
Navajo Sandstone
A,C
Kayenta Formation
A,C
Wingate Sandstone
A,C
Chinle Formation Triassic

208
.
245

A,C
Moenkopi Formation
A*,C
White Rim Sandstone

Permian

*Cutler Undivided

245

.

.

286

A*,C
Organ Rock Formation
A*,C,N
Cedar Mesa Sandstone
A*,C
Lower Cutler/Halgaito Shale
A,C
Honaker Trail Formation Pennsylvanian

286
.
320

C
Paradox Formation

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