TY  - RPRT
TI  - Database of the geologic map of North America— Adapted from the map by J.C. Reed, Jr. and others (2005)
AU  - Christopher P. Garrity
AU  - David R. Soller
PY  - 2009
DO  - 10.3133/ds424
UR  - https://pubs.usgs.gov/publication/ds424
ID  - ds424
ER  -