TY  - RPRT
TI  - Geologic map of the Jumpup Canyon and Big Springs quadrangles, Mohave and Coconino counties, Arizona
AU  - G. H. Billingsley
PY  - 1990
DO  - 10.3133/ofr90258
UR  - https://pubs.usgs.gov/publication/ofr90258
ID  - ofr90258
ER  -