TY  - RPRT
TI  - Map showing location of sand, gravel, and till pits and quarries in the Rockville quadrangle, Connecticut
AU  - Roger B. Colton
AU  - Michael J. Mallory
PY  - 1969
DO  - 10.3133/ofr6958
UR  - https://pubs.usgs.gov/publication/ofr6958
ID  - ofr6958
ER  -