H 718 — NGS RD1582 — Portland, US

USNGStrigunknown#5637
Latitude
45.528583°
Longitude
-122.665417°
Ortho h
26.96 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey's network of fundamental control points that establish the geometric framework for mapping and surveying across the United States. Located near Portland, Oregon, at coordinates 45.52858° N, 122.66542° W, this trig point serves as a reference for horizontal positioning and triangulation work in the region. Trigonometric stations of this type were historically established to provide accurate control for large-scale surveys and mapping projects. Documentation and verification of such benchmarks remain important for surveyors, engineers, and geodetic professionals who require reliable reference points for boundary determination, infrastructure projects, and spatial data collection. Maintaining records of these control points ensures continuity of the national geodetic infrastructure and supports the accuracy of subsequent surveying efforts in the Portland metropolitan area and surrounding regions.

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H 718 — NGS RD1582 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5637 on SurveyingPedia and sits at an approximate elevation of 27.0 metres. Its coordinates in WGS84 are 45.528583°, -122.665417°, corresponding to 45° 31′ 42.90″ N, 122° 39′ 55.50″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like H 718 — NGS RD1582 — Portland, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)45.528583, -122.665417
WGS84 (DMS)45° 31′ 42.90″ N, 122° 39′ 55.50″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation26.96 m
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
STEEL — NGS RD0466 — Portland, US
0.1 km away · US
US NGS · triangulation station
RAILROAD SEMAPHORE AT STEEL — NGS RD2992 — Portland, US
0.1 km away · US
US NGS · triangulation station
O 14 — NGS RD0465 — Portland, US
0.2 km away · US
US NGS · triangulation station
PORTLAND KERR GIFFORD ELEV FS — NGS RD3073
0.3 km away · US
US NGS · triangulation station
29 RESET — NGS RD0471 — Portland, US
0.3 km away · US
US NGS · triangulation station
KERR — NGS RD3086 — Portland, US
0.4 km away · US

Frequently asked questions

What is H 718 — NGS RD1582 — Portland, US?

H 718 — NGS RD1582 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5637 and sits at an elevation of 27.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of H 718 — NGS RD1582 — Portland, US?

The position of H 718 — NGS RD1582 — Portland, US in WGS84 is 45.528583°, -122.665417° (decimal), or 45° 31′ 42.90″ N, 122° 39′ 55.50″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 10N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.