Absolute, Absolute Excenter, Pendulum and/or Calibration Base Stations
BROKEN BOW C: BJ Wood Company lobby, Broken Bow, OK (Base)
FORT MCALESTER AA: Army Ammunition Plant Bldg. 7, Fort McAlester, OK (Absolute)
LEONARD AA: OK Geophysical Lab. subsurface vault, Leonard, OK (Absolute)
LEONARD CA: OK Geophysical Lab. Magnetic Var. Bldg., Leonard, OK (Abs. Excenter)
LEONARD CB: Leonard Elementary School, Leonard, OK (Base)
LEONARD NCMN: OK Geophysical Lab., Leonard, OK (Abs. Excenter)
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