INFORMATION ABOUT FILES PROVIDED WITH THE RORA PROGRAM The web site for the RORA computer program (http://water.usgs.gov/ogw/rora) includes the option to download zipped files including the program and auxiliary files needed to run the program. These files are described below. The program user will find more information in the user manual. rora.exe -- The part program screen.exe -- Auxiliary program for determining the duration of a streamflow record. BigHill.txt, Holiday.txt, Indian.txt, LitAndro.txt, and Sewee.txt -- Streamflow data files that are described in the user manual. rorasum.txt - The beginning of an output file that will give summary results from part. station.txt -- A file that is used to give the drainage area of streamflow stations. index.txt - A file that is used to give the recession index of streamflow stations.