Prepared in cooperation with the
U.S. Army Corps of Engineers and the Yellowstone River Conservation District Council
Streamflow Statistics for Unregulated and Regulated Conditions for Selected Locations on the Yellowstone, Tongue, Powder, and Bighorn Rivers, Montana
- Using existing data from USGS streamflow-gaging stations, build series of daily streamflow for the 1928-2002 study period for each selected gaging station.
- Using Bureau of Reclamation “depletions” (water use) data, estimate unregulated and regulated streamflow data.
- Calculate streamflow statistics for both unregulated and regulated conditions.
Katherine J. Chase
USGS WY-MT Water Science Center
3162 Bozeman Avenue, Helena, MT 59601
Tiffany Vanosdall, PMP
US Army Corps of Engineers
Nicole Divine McClain, Executive Director
Yellowstone River Conservation District Council
Wyoming-Montana Water Science Center