TY  - RPRT
TI  - Natural acid drainage from altered areas within and adjacent to the upper Alamosa River basin, Colorado
AU  - W. R. Miller
AU  - J. B. McHugh
PY  - 1994
DO  - 10.3133/ofr94144
UR  - https://pubs.usgs.gov/publication/ofr94144
ID  - ofr94144
ER  -