David Carl Hedlund

1924

• Background information to accompany folio of geologic, mineral resource, geochemical, aeromagnetic, and gravity maps of the Hillsboro and San Lorenzo quadrangles, Sierra and Grant Counties, New Mexico
• Economic geology of some selected mines in the Hillsboro and San Lorenzo quadrangles, Grant and Sierra counties, New Mexico
• Geologic map of the Tillie Hall Peak quadrangle, Greenlee County, Arizona, and Grant County, New Mexico
• Geology, mines, and prospects of the Tyrone stock and vicinity, Grant County, New Mexico
• Mineral resources of the Far South Egans Wilderness Study Area, Lincoln and Nye counties, Nevada