Category:Triassic formations in the United States by state
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States of the United States: Alaska · Arizona · California · Colorado · Connecticut · Idaho · Maine · Maryland · Massachusetts · Montana · Nevada · New Hampshire · New Jersey · New Mexico · New York · North Carolina · North Dakota · Oklahoma · Oregon · Pennsylvania · South Dakota · Texas · Utah · Vermont · Virginia · Washington · Wyoming
Subcategories
This category has the following 27 subcategories, out of 27 total.