TY - RPRT TI - Physical, chemical, and biological data for the Uncompahgre Project area and the Grand Valley, west-central Colorado, 1993-98 AU - David L. Butler AU - Barbara Campbell Osmundson PY - 2000 DO - 10.3133/ofr99453 UR - https://pubs.usgs.gov/publication/ofr99453 ID - ofr99453 ER -