Collection of Archived Well Logs from Iowa

This collection houses well logs and construction data for water wells, exploration holes, gas storage structures, geotechnical borings, etc. The collection includes but is not limited to: drilling logs, down-hole geophysical logs, and striplogs (lithologic and stratigraphic logs produced by the IGS). This collection represents data from paper files that complement our cuttings/core collections. Together, they comprise much of the basic, raw geologic data for the state.