EPF 23 — NGS RD4342 — Portland, US

USNGStrigunknown#5433
Latitude
45.526469°
Longitude
-122.565918°
Ortho h
91.10 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey network that underpins the United States' official geodetic framework. Located near Portland, Oregon at coordinates 45.52647° N, 122.56592° W, this trig point serves as a control station for horizontal positioning and survey work across the region. Triangulation stations of this class historically provided essential reference points for mapping, engineering surveys, and boundary establishment. The NGS maintains and documents these monuments to enable surveyors and geospatial professionals to tie their local measurements into the national coordinate system with known accuracy. Verification and documentation of such benchmarks remains valuable for quality assurance in surveying projects and for understanding the historical development of geodetic control in the Pacific Northwest. This point's coordinates are recorded in the NGS database as a reference for professional survey work in the area.

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EPF 23 — NGS RD4342 — Portland, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #5433 on SurveyingPedia and sits at an approximate elevation of 91.1 metres. Its coordinates in WGS84 are 45.526469°, -122.565918°, corresponding to 45° 31′ 35.29″ N, 122° 33′ 57.30″ 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 EPF 23 — NGS RD4342 — 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)45.526469, -122.565918
WGS84 (DMS)45° 31′ 35.29″ N, 122° 33′ 57.30″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation91.10 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
PORTLAND MONTAVILLA WATER TANK — NGS RD2915
0.1 km away · US
US NGS · triangulation station
PORTLAND RUSSELVILLE WATER TK — NGS RD2913
0.3 km away · US
US NGS · triangulation station
CITY 914 — NGS RD0363 — Portland, US
0.8 km away · US
US NGS · triangulation station
L 23 — NGS RD0346 — Portland, US
1.3 km away · US
US NGS · triangulation station
N 484 — NGS RD0347 — Portland, US
1.5 km away · US
US NGS · triangulation station
PORTLAND CO RAD KOE 808 MAST — NGS RD2914
1.6 km away · US

Frequently asked questions

What is EPF 23 — NGS RD4342 — Portland, US?

EPF 23 — NGS RD4342 — Portland, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #5433 and sits at an elevation of 91.1 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of EPF 23 — NGS RD4342 — Portland, US?

The position of EPF 23 — NGS RD4342 — Portland, US in WGS84 is 45.526469°, -122.565918° (decimal), or 45° 31′ 35.29″ N, 122° 33′ 57.30″ 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.