Skip to Content


The Iowa Geological Survey (IGS) is pleased to announce the release of GeoSam version 1.0
( GeoSam is Iowa’s geologic site and sample tracking program. It is an easy-to-use online interface that offers users access to a wide range of geologic data, including information collected by well drillers, searchable by address or county.  GeoSam provides location, identification, and other key information about every available well, rock exposure, or site of geologic information in Iowa. GeoSam can be searched using either a map-based or text-based interface.

The new GeoSam is a significant improvement over the previous version. Users can search the database using either a map- or text-based interface. A new feature in GeoSam allows users to save search results as “KML” files, which can be opened in Google Earth or imported into ESRI’s ArcGIS.

Questions about the new GeoSam can be submitted by either using the “Contact” form in GeoSam or by emailing

The Iowa Geological Survey (, based at IIHR—Hydroscience & Engineering at the University of Iowa, provides Iowans with expertise in subsurface geology and groundwater resources. The IGS serves agencies, communities, and other stakeholders with surficial and bedrock mapping statewide, maintenance of a repository of geologic samples and data, geologic research projects across the state, and a wide range of outreach and educational activities.

For questions, please contact: Rick Langel (

Last modified on July 19th, 2016
Posted on July 19th, 2016