TY  - RPRT
TI  - Preliminary geologic map of the Chaco Canyon 1 degree by 1/2 degree Quadrangle, showing coal zones of Fruitland Formation, San Juan, Rio Arriba, and Sandoval counties, New Mexico
AU  - J. W. Mytton
PY  - 1979
DO  - 10.3133/mf1104
UR  - https://pubs.usgs.gov/publication/mf1104
ID  - mf1104
ER  -