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Marker Type: Iron Bolt

Survey marks of type: Iron Bolt

CENTRAL PARK BOLT
CADILLAC GROUND

Popular Pages

Map of Airway Beacons
Airway Beacons—Western U.S.
Airway Beacons—Eastern U.S.
Local Control Monument Databases
NGS Historical Geodetic Control Diagrams
USGS Datasheets
Resurvey of the Heart of the Grand Canyon

Recent Recoveries

NPS (Unstamped, Acadia #23)
NPS (Unstamped, Acadia #22)
NPS (Unstamped, Acadia #21)
G 145
P 144

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