Summary

Source: U.S. Department of Interior. National Park Service. Link: http://www.nps.gov/mwr/customcf/apps/CMS_HandF/GreenBoxPics/BUFF_RushDownriverHP.jpg

Licensing

This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government , such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.