TY  - RPRT
TI  - Reconnaissance of the upper Au Sable River a cold-water river in the north-central part of Michigan's southern peninsula
AU  - G. E. Hendrickson
AU  - C. J. Doonan
PY  - 1974
DO  - 10.3133/ha527
UR  - https://pubs.usgs.gov/publication/ha527
ID  - ha527
ER  -