Utah Stratigraphic Columns
These stratigraphic columns are dynamically created (on the fly) from information stored in a database. Information was gathered from a number of sources – see copyright info for more information.
USGS & UGS Special Publications
Roadside Geology of Utah by Halka Chronic
Field Guide: Northern Colorado Plateau by Keith Rigby
Geologic History of Utah by Lehi Hintze– Purchase Information