TY  - RPRT
TI  - A synthesis engine for constructing geologic maps of the United States
AU  - Samuel Johnstone
AU  - Joseph P. Colgan
AU  - Warren P. Roe
PY  - 2025
DO  - 10.3133/dr1210
UR  - https://pubs.usgs.gov/publication/dr1210
ID  - dr1210
ER  -