3S3E9SE — NGS AJ8149 — Clackamas County, US

USNGStrigunknown#634670
Latitude
45.316837°
Longitude
-122.434616°
Ellipsoidal h
179.34 m
Ortho h
202.20 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's horizontal control network, which establishes the fundamental geodetic framework for the United States. Located in Clackamas County, Oregon, at coordinates 45.31684° N, 122.43462° W with an ellipsoidal elevation of 179.3 meters, this trig point serves as a reference station for surveys requiring high accuracy positioning. As a triangulation monument, this benchmark contributes to the network's role in supporting cadastral surveying, engineering projects, and mapping applications across Oregon. Trig stations of this classification are typically established at locations offering good visibility for sighting procedures and stability for long-term monumentation. Verification and documentation of such control points remain essential for maintaining the integrity of the national geodetic infrastructure. Surveyors and engineers rely on these established references to tie local surveys to the broader coordinate system.

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3S3E9SE — NGS AJ8149 — Clackamas County, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #634670 on SurveyingPedia and sits at an approximate elevation of 202.2 metres. Its coordinates in WGS84 are 45.316837°, -122.434616°, corresponding to 45° 19′ 0.61″ N, 122° 26′ 4.62″ 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 3S3E9SE — NGS AJ8149 — Clackamas County, 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)45.316837, -122.434616
WGS84 (DMS)45° 19′ 0.61″ N, 122° 26′ 4.62″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation202.20 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
2S3E31SE — NGS AJ8140 — Clackamas County, US
4.5 km away · US
GeoNames topographic database · ridge
The Hogback
4.6 km away · US
US NGS · triangulation station
2S3E34C45SW — NGS AJ8141 — Clackamas County, US
4.9 km away · US
US NGS · triangulation station
HUNSINGER RM 5 — NGS RD2489 — Clackamas County, US
7.3 km away · US
US NGS · triangulation station
HUNSINGER — NGS RD2483 — Clackamas County, US
7.3 km away · US
GeoNames topographic database · mine_entrance
Hardscrabble Quarry
8.3 km away · US

Frequently asked questions

What is 3S3E9SE — NGS AJ8149 — Clackamas County, US?

3S3E9SE — NGS AJ8149 — Clackamas County, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #634670 and sits at an elevation of 202.2 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of 3S3E9SE — NGS AJ8149 — Clackamas County, US?

The position of 3S3E9SE — NGS AJ8149 — Clackamas County, US in WGS84 is 45.316837°, -122.434616° (decimal), or 45° 19′ 0.61″ N, 122° 26′ 4.62″ 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.