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About the KGS Geologic Map Service

This internet map service provides geologic maps and related information compiled by the Kentucky Geological Survey. You can create a custom layout for your map using the Map Layers tab and save that map for later viewing with a bookmark function. Additional themes that relate to geology, land use, environmental protection and economic development can be overlain on the geologic base. Also, descriptions of rock units, their behaviors and economic uses can be obtained using the site's search tools. An overview of each function is given below.

Detailed (1:24,000-scale) geologic maps can be viewed for all areas of the state. Only areas highlighted by orange rectangles on the index map have lithologic and economic descriptions, cross sections, and diagrams available for explanation. Remaining areas are being added as time permits.

Geologic Map Service Tutorials:

Related Links:

Overview of Map Functionality
Most of the map functionality is provided in the tabs on the right-side of the map interface:

Tools. The tool tab contains standard tools for zoom and pan control of the map. In addition there are several custom tools:

Query. This functionality allows you to search the Kentucky Geological Survey database for geologic descriptions from KGS publications, maps, and field notes and highlight those units on the map. Follow the instructions on the tab for more information about using this feature.

Legend. This tab provides explanations of symbology for the map layout. The map unit colors display the map colors for the units in the viewed extent. Other map symbols are displayed below the colors and are also displayed with each map layer on the "Layers" tab.

Layers. This tab provides controls for changing the layout of the map. There are three main sections in this tab: Geologic Information. There are two ways to get information about geologic units or other features on the map. The identity tool , described above, is used to gather information about specific features. It works by clicking on the map and the results are sent to a pop-up window. The identity tool only returns descriptions from the 1:24,000-scale GQ's. Be aware that the sensitivity of the tool is scale-dependant. Clicking at small scales may return descriptions for multiple map units or features.

The Geologic Information tab provides comprehensive searches for all information that pertains to the map extent. Because of the larger amount of information that is accessed, the searches are provided from individual links. The results are grouped by type of source and then by the individual source title. The source title is a link to the KGS online list of publications, where many publications can be viewed. For lithology descriptions, a portion of the graphic stratigraphic column is provided for context, and the full stratigraphic column is accessed from a link.