MW0820 - USC&GS 'BLUE AZ MK' Triangulation Station - Modoc County, CA
Posted by: Groundspeak Premium Member NW_history_buff
N 41° 49.735 W 120° 51.115
10T E 678379 N 4633011
This NGS station is located atop East Point of Blue Mountain.
Waymark Code: WMT1TX
Location: California, United States
Date Posted: 09/10/2016
Published By:Groundspeak Premium Member Ernmark
Views: 1

I recovered this U.S. Coast & Geodetic Survey triangulation station (acting as an Azimuth Mark for BLUE 1931 PID #MW0818) from 1948 in good condition. It is monumented on some large bedrock east of nearby Lookout Tree (PID #MW0821) and amidst a deteriorating wooden survey stand/tower. The NGS datasheet is adequate for station recovery.

NGS datasheet info:

01/01/1948 by CGS (MONUMENTED)

DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (WRH) THE STATION IS ON THE EAST EDGE OF BLUE MOUNTAIN, 30 MILES NORTH NORTHWEST OF ALTURAS. IT IS ON A LARGE ROCK OUTCROPPING 70 FEET SOUTHEAST OF A TREE TOP LOOKOUT. THE STATION MARK, STAMPED BLUE AZ 1948, IS SET IN A LARGE BOULDER PROJECTING ABOUT 2 FEET.

STATION BLUE 1931 WILL SERVE AS THE AZIMUTH MARK.

TO REACH THE STATION FROM THE U.S. POST OFFICE IN ALTURAS, GO 0.8 MILE NORTH ON MAIN STREET. TURN LEFT ON U.S. HIGHWAY 299 AND GO 3.5 MILES. TURN RIGHT ON THE BLUE MTN. ROAD AND GO 2.0 MILES. TURN RIGHT AND CONTINUE FOR 7.0 MILES. TURN RIGHT AND GO 0.8 MILE. TURN RIGHT AND GO 3.7 MILES. TURN LEFT AND GO 1.9 MILES. TURN LEFT AND GO 13.0 MILES. TURN LEFT AS PER SIGN BLUE MTN. LOOKOUT AND GO 5.6 MILES. TURN LEFT FOR 100 YARDS, TAKE RIGHT FORK AND GO 1.25 MILES. TURN LEFT ON DIM ROAD AND GO 0.55 MILE TO STATION ON THE RIGHT.
Condition: Mark found in good condition

Designation: BLUE AZ MK

Benchmark Agency: U.S. Coast & Geodetic Survey

Monumentation type: TRIANGULATION STATION Disk

County: Modoc County

USGS 7.5' Topographic Quadrangle Name (optional): Hager Basin (1993)

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: MW0820

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

Benchmark Agency (if other): Not listed

Monumentation type (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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