These photographs are associated with the features in the 2001 Yellowstone River Rapid Aerial Assessment GIS dataset at ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Shapefiles/YelPhysFeat2001.zip and with the Montana Digital Atlas web pages for accessing additional information about the features, including these photographs, at http://maps2.nris.mt.gov/mapper/ReportsASP/YelRiver2.asp and http://maps2.nris.mt.gov/mapper/ReportsASP/YelRiver3.asp