Keywords: Hayden Survey by W.H.Jackson.jpg Painting by Wuilliam Henry Jackson of the Hayden Expedition Yellowstone National Park 1871 Retrieved from National Park Service websitehttp //www nps gov/archive/yell/slidefile/history/moranandotherart/Page htm with disclaimer that image is within public domain http //www nps gov/archive/yell/slidefile/index htm here These images are in the public domain and may be reproduced free of charge with the proper credit line PD-USGov William Henry Jackson 1871 in Wyoming Yellowstone National Park in art |