R. O. Hawkinson

Sediment discharge in Fortification Creek and the effect of sedimentation rate on the proposed Rampart Reservoir, northwestern Colorado

D. L. Butler, R. O. Hawkinson, R. Boulger, 1990 .

Water-resources investigations of the U.S. Geological Survey in Colorado; fiscal year 1983

R. O. Hawkinson, D. J. Lystrom, 1983 .

An assessment of areal and temporal variations in streamflow quality using selected data from the National Stream Quality Accounting Network

E. J. Gilroy, T. Steele, Timothy Doak Steele, 1974 .

The National Stream Quality Accounting Network (NASQAN) - Some questions and answers

John F. Ficke, Richard O. Hawkinson, J. Ficke, 1975 .