TY - RPRT TI - Water Resources Data, Colorado, Water Year 1999--Volume 1. Missouri River Basin, Arkansas River Basin, and Rio Grande Basin AU - R.M. Crowfoot AU - J.W. Unruh AU - G.F. Ritz AU - R.D. Steger AU - G. B. O’Neill PY - 2000 DO - 10.3133/wdrco991 UR - https://pubs.usgs.gov/publication/wdrCO991 ID - wdrCO991 ER -