TY  - RPRT
TI  - Surficial geologic map of the Grassy Lake Reservoir Quadrangle, Yellowstone National Park and adjoining area, Wyoming
AU  - G.M. Richmond
PY  - 1973
DO  - 10.3133/i644
UR  - https://pubs.usgs.gov/publication/i644
ID  - i644
ER  -