TY  - RPRT
TI  - Mount St. Helens ash fall in the Bull Run watershed, Oregon, May-June 1980
AU  - Michael V. Shulters
AU  - Daphne G. Clifton
PY  - 1980
DO  - 10.3133/ofr80593
UR  - https://pubs.usgs.gov/publication/ofr80593
ID  - ofr80593
ER  -