The Kentucky Geological Survey (KGS), as part of the United States Geoscience Information Network (USGIN), provides a compilation of geologic maps from the NGCMP-09 database (http://ngcmp.usgs.gov/) covering the United States of America including Hawaii and Alaska. This Service was published by the KGS as part of the USGIN initiative to “create and facilitate discovery and access to geoscience information provided by state and federal geological surveys of the United States”. These data were compiled by the Kentucky Geological Survey. Four (4) layers included in this service are as follows: 1. US-KY_KGS_24K_Geologic_Age is a compilation dataset containing geologic units covering the Commonwealth of Kentucky at 1:24,000 scale. The data table includes geologic name, description, lithology, and geologic history. The data in this layer is portrayed based on geologic age; 2. US-KY_KGS_24K_Lithology is a compilation dataset containing geologic units covering the Commonwealth of Kentucky at 1:24,000 scale. The table includes geologic name, description, lithology, and geologic history. The data in this layer is portrayed based on lithology; 3. US-KY_KGS_24K_Contacts is a compilation dataset containing geologic contacts covering the Commonwealth of Kentucky at a scale of 1:24,000. The table includes contact type, positional accuracy and generic symbolizer (FGDC). Citations are included in the data set. 4. US-KY_KGS_24K_Faults is a compilation dataset containing shear displacement structures covering the Commonwealth of Kentucky at a scale of 1:24,000. The table includes fault type, positional accuracy, and generic symbolizer (FGDC). Citations are included in the dataset.

The USGS US Topo Availability service from The National Map consists of footprints where US Topo products are currently available. Various green tints are used to reflect the year in which US Topo map products have been published. The service is updated daily and contains the same data used in footprints in the Map Locator & Downloader application program interface used in the USGS Store (http://store.usgs.gov). In addition to access through The National Map download client (http://viewer.nationalmap.gov/basic), US Topo products and other USGS publications are available through the USGS Store. For additional information, go to http://nationalmap.gov/ustopo.

The USGS Map Indices service from The National Map (TNM) consists of 1x1 Degree, 30x60 Minute (100K), 15 Minute (63K), 7.5 Minute (24K), and 3.75 Minute grid polygons used in The National Map viewer for reference and to download data. At 1:24,000-scale (24K), the standard map size is 7.5 minutes of latitude by 7.5 minutes of longitude. At 1:100,000-scale (100K), the standard map size is 30 minutes of latitude by 60 minutes of longitude. The National Map viewer allows free download of public domain USGS map indices data in Esri File Geodatabase format.