TY  - RPRT
TI  - Uncovering Hidden Hazards in the Mississippi Valley
AU  - Thomas G. Hildenbrand
AU  - Victoria E. Langenheim
AU  - Eugene Schweig
AU  - Peter H. Stauffer
AU  - James W. Hendley
PY  - 1996
DO  - 10.3133/fs20096
UR  - https://pubs.usgs.gov/publication/fs20096
ID  - fs20096
ER  -