Copyrights and Trademarks: USGS-authored or produced data and information are considered to be in the U.S. public domain (THIS IMAGE). While the content of most USGS Web pages is in the U.S. public domain, not all information, illustrations, or photographs on our site are. Some photographs, images, and/or graphics that appear on USGS Web sites are used by the USGS with permission from the copyright holder. These materials are generally marked as being copyrighted.
When using information from USGS information products, publications, or Web sites, we ask that proper credit be given. Credit can be provided by including a citation such as the following:
Credit: U.S. Geological Survey, Department of the Interior/USGS, U.S. Geological Survey/art by Regina One Star (THIS IMAGE) (if the photographer/artist is known)
Generally speaking, works created by U.S. Government employees are not eligible for copyright protection in the United States. See Circular 1 "COPYRIGHT BASICS" from the U.S. Copyright Office.
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