TY  - RPRT
TI  - Preliminary structure contour map of the Branson area Las Animas County, Colorado and Union County, New Mexico
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1942
DO  - 10.3133/ofr4330
UR  - https://pubs.usgs.gov/publication/ofr4330
ID  - ofr4330
ER  -