DK4173 - KLAMATH FALLS 5 CORS ARP - Klamath County, OR
Posted by: Groundspeak Premium Member NW_history_buff
N 42° 17.329 W 121° 40.159
10T E 609704 N 4682700
This is a GPS Continuously Operating Reference Station (CORS) and contains EIGHT PID numbers, all referencing different parts of the station and located just off Swan Lake Rd in Klamath County, OR.
Waymark Code: WMK8K2
Location: Oregon, United States
Date Posted: 02/28/2014
Published By:Groundspeak Premium Member Ernmark
Views: 2

After waymarking a NGS metal rod here I realized later on that this property is a GPS Continuously Operating Reference Station (CORS) owned and operated by the U.S. Coast Guard. This government-owned chunk of land contains two phase centers and multiple antennas, one of which stands at least 200 feet.

This particular NGS station is the Antenna Reference Point (ARP) of the GPS antenna. ***NOTE*** Although eight stations appear in the NGS CORS database, only four are functional. CORS 1 and CORS 2 phase centers were decommissioned in 2008 and replaced with CORS 5 and CORS 6 phase centers. Datasheets to any CORS 1 or CORS 2 stations should NOT be used or waymarked.

From the NGS datasheet description:

STATION DESCRIPTION

DESCRIBED BY NATIONAL GEODETIC SURVEY 2011
STATION IS A GPS CORS. LATEST INFORMATION INCLUDING POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
ftp://cors.ngs.noaa.gov/cors/README.txt
ftp://cors.ngs.noaa.gov/cors/coord/coord_08
ftp://cors.ngs.noaa.gov/cors/station_log
http://geodesy.noaa.gov/CORS

My posted coordinates place you just outside the station fence line, since the public is not allowed to go past the fenced-in government property. Taking pictures of the tall antenna and the smaller phase centers should suffice as a visit to this NGS station.

Condition: Mark found in good condition

Designation: KLAMATH FALLS 5 CORS ARP

Benchmark Agency: National Geodetic Survey

Monumentation type: other (not any of the below)

Monumentation type (if other): CORS Station

County: Klamath County

USGS 7.5' Topographic Quadrangle Name (optional): WHITELINE RESERVOIR (1985)

Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used

Web address of this benchmark's datasheet (optional): [Web Link]

NGS PID: DK4173

Local database's URL (optional): [Web Link]

Benchmark Agency (if other): Not listed

Special category (optional): Not listed

Special Category (if other): Not listed

Visit Instructions:
  1. A closeup photo of the mark taken by you is required.
  2. A 'distant' photo including the mark in the view is highly recommended. Include the compass direction you faced when you took the picture.
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Recent Visits/Logs:
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Rkoehn1 visited DK4173 - KLAMATH FALLS 5 CORS ARP - Klamath County, OR 10/04/2015 Rkoehn1 visited it