TY  - RPRT
TI  - Complete Bouguer gravity anomaly, isostatic-residual gravity, horizontal gradient, and terrain maps of Colorado
AU  - G. A. Abrams
AU  - D. H. Knepper
PY  - 1994
DO  - 10.3133/gp1009
UR  - https://pubs.usgs.gov/publication/gp1009
ID  - gp1009
ER  -