Skip to content
Oregon Spatial Data Library
Launch Map Viewer
Land Use/Land Cover
Oregon Geologic Data Compilation
Compiled by Lina Ma, Ian P. Madin, Keith V. Olson, and Rudie J. Watzig, Oregon Department of Geology and Mineral Industries
This data layer is an element of the Oregon GIS Framework. The Oregon Department of Geology and Mineral Industries (DOGAMI) has completed the six-year project to digitally compile geologic data for the entire state. This effort brings together the best available geologic mapping from state and federal agency sources, student thesis work, and consultants. The project will create a new statewide digitally-compiled geologic map coverage that will become a component of the Geoscience Theme within the Oregon Framework Themes. The Oregon Framework Themes effort is coordinated by the Oregon Geospatial Enterprise Office, Oregon Department of Administrative Services.
To assemble the best available geologic map information for Oregon by integrating the work of many individual geologic mappers into a vector digital data set stored in geographic information system (GIS) format with links to a relational database.
Time Period of Content
West Bounding Longitude:
East Bounding Longitude:
North Bounding Latitude:
South Bounding Latitude:
This geologic data compilation is not intended for site-specific investigations. This data set is the result of integrating parts or all of 345 separate reference maps, and the accuracy varies according to the original reference map scale (1:12,000 to 1:500,000). Data resolution greater than original reference map scale(s) is not available.DOGAMI makes no warranty as to the currency, completeness, accuracy or utility of any specific data. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data.User should use caution when overlaying other data sets and should not make legally binding decisions from this data. Any person using the information presented here should fully understand the data collection and compilation process before beginning their analysis/use. The burden of determining fitness for use lies with the user.To avoid the risk of misinterpretation, invalid results, and erroneous conclusions, the users must consider original map scale, collection methodology, and any other conditions specific to every data element and each dataset as a whole. Potential users are advised to consult with DOGAMI to gain an understanding of the inherent limitations of this data set and its scope of inference. Also, the user must be aware that errors and conditions originating from physical sources involved in developing a dataset may be reflected in the data, and that the digital processing performed during preparation, storage, and transmission of the dataset may have exacerbated such errors and/or introduced additional ones.
Geologic map units
The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily the official policies, either expressed or implied, of the U.S. Government. Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries (DOGAMI), no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from DOGAMI, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata Reference Information
mailing and physical address
Metadata Standard Name:
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version:
The Oregon Spatial Data Library was built using the ESRI Geoportal Server. Please read the