Butler, David L.Keller, George V. (George Vernon), 1927-Romig, Phillip R.Miles, Deborah R.2021-05-052022-02-032021-05-052022-02-031977https://hdl.handle.net/11124/176361Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Gravity anomalies -- Colorado -- Clear Creek CountyMines and mineral resources -- Colorado -- Clear Creek CountyGravity survey in the haulage tunnel of the Henderson Mine near Berthoud Pass, Colorado, AText