Geodetic benchmarks in United States

18,835 indexed control points and trig stations in United States. Data aggregated from NGS.

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18,835
Total points
1
Networks
5
Types
CC-BY
License

Top benchmarks in United States

NGS · trig
Meades Ranch Triangulation Station
39.22800°, -98.54200°
NGS · bench
Mount Evans Summit Marker
39.58800°, -105.64300°
NGS · gnss
Mauna Kea VLBI Antenna Base
19.82400°, -155.47200°
NGS · bench
Point Loma Lighthouse Benchmark
32.67000°, -117.24200°
NGS · trig
PUAA — NGS DL6318
21.45021°, -158.19537°
NGS · trig
SOH 57 — NGS DR2120 — Waipahu, US
21.46908°, -158.02464°
NGS · trig
KPH SEISMOMETER 1965 — NGS TU1598
21.57300°, -158.27268°
NGS · trig
KAHUKU WATER TANK — NGS TU1497 — Honolulu County, US
21.68601°, -158.00960°
NGS · trig
KAENA S — NGS TU1597
21.57322°, -158.27169°
NGS · trig
8 1 — NGS TU0570
21.56523°, -158.26333°
NGS · trig
SOH 09 — NGS DR2069
21.45056°, -158.19169°
NGS · trig
MAKAHA — NGS TU1696
21.46737°, -158.18832°

About geodetic benchmarks in United States

Geodetic benchmarks are fixed physical markers with precisely known coordinates, used by surveyors for referencing measurements, calibrating equipment, and validating GNSS setups. In United States, these control points are maintained by national mapping agencies and international networks such as EUREF, IGS, and NGS, plus OpenStreetMap contributions from local surveyors.

SurveyingPedia aggregates these public datasets into a single searchable map. Each point on this page is cross-referenced with its source agency, and linked to a detailed datasheet with satellite imagery, coordinates in multiple reference systems, and community verification status.

Data is refreshed daily via automated harvesters, and new points are added continuously. If you are a licensed surveyor in United States and want to contribute your records or correct an existing entry, create a free account and join the community.

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