4017 — NGS RD1593 — Portland, US

USNGStrigunknown#5099
Latitude
45.557239°
Longitude
-122.537475°
Ellipsoidal h
-7.17 m
Ortho h
15.60 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey network, which establishes the fundamental horizontal and vertical control framework for the United States. Located near Portland, Oregon at coordinates 45.55724°, -122.53748°, this trig point serves as a reference for surveying, mapping, and engineering projects throughout the region. The ellipsoidal elevation of -7.2 meters indicates positioning relative to the reference ellipsoid. Triangulation stations like this historically provided precise horizontal control through intervisibility and angular measurements. Modern surveyors and engineers rely on documented NGS benchmarks to validate local surveys, establish project baselines, and ensure consistency across cadastral and infrastructure work. Verification and documentation of such control points remain essential for maintaining geodetic accuracy in regional applications.

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4017 — NGS RD1593 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5099 on SurveyingPedia and sits at an approximate elevation of 15.6 metres. Its coordinates in WGS84 are 45.557239°, -122.537475°, corresponding to 45° 33′ 26.06″ N, 122° 32′ 14.91″ 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 4017 — NGS RD1593 — 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)45.557239, -122.537475
WGS84 (DMS)45° 33′ 26.06″ N, 122° 32′ 14.91″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation15.60 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
2976 — NGS RD1594 — Portland, US
0.9 km away · US
US NGS · triangulation station
N 23 RESET — NGS RD0371 — Portland, US
1.2 km away · US
US NGS · triangulation station
F 260 — NGS RD0372 — Portland, US
1.2 km away · US
US NGS · triangulation station
S 104 — NGS RD0373 — Portland, US
1.2 km away · US
US NGS · triangulation station
LANDING — NGS RD2838 — Portland, US
1.3 km away · US
US NGS · triangulation station
V 484 — NGS RD0370 — Portland, US
1.3 km away · US

Frequently asked questions

What is 4017 — NGS RD1593 — Portland, US?

4017 — NGS RD1593 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5099 and sits at an elevation of 15.6 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 4017 — NGS RD1593 — Portland, US?

The position of 4017 — NGS RD1593 — Portland, US in WGS84 is 45.557239°, -122.537475° (decimal), or 45° 33′ 26.06″ N, 122° 32′ 14.91″ 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.