V. J. S Grauch

• Gravity survey data and a Bouguer gravity anomaly map of the Lake City caldera area, Hinsdale County, Colorado
• Materials provided at the workshop "Geophysical Map Interpretation on the PC", convened April 21-22, 1993
• Revised digital aeromagnetic data for areas in and adjacent to the National Petroleum Reserve Area (NPRA), North Slope, Alaska
• Summary of natural remanent magnetization, magnetic susceptibility, and density measurements from the Lake City caldera area, San Juan Mountains, Colorado