We make every effort within our capacity to provide and maintain accurate, complete, usable, and timely data and information on our Web sites and map services. These data and information are provided with the understanding that they are not guaranteed to be correct or complete. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Map services from The National Map are also not guaranteed to be operational 24 hours/seven days a week; however, we will support their operation during normal working hours from 8:00 am to 5:00 pm CT from Monday through Friday.
Map services and data downloaded from The National Map are free and in the public domain. There are no restrictions; however, we request that the following acknowledgment statement of the originating agency be included in products and data derived from our map services when citing, copying, or reprinting: "Map services and data available from U.S. Geological Survey, National Geospatial Program." Please go to http://www.usgs.gov/visual-id/credit_usgs.html for further information and details regarding the USGS Visual Identity System.