MW0928 - USGS 'DORRIS RIDGE RM 1' Reference Mark - Siskiyou County, CA
Posted by: Groundspeak Premium Member NW_history_buff
N 41° 57.757 W 121° 50.616
10T E 595827 N 4646272
This NGS reference mark is located on top of Dorris Ridge.
Waymark Code: WMPPXM
Location: California, United States
Date Posted: 10/04/2015
Published By:Groundspeak Premium Member Ernmark
Views: 2

I recovered this U.S. Geological Survey Reference Mark from 1932 in good condition. Is is monumented on a boulder as part of a rock outcrop and gold-plated in color. The NGS datasheet description is adequate for station recoverey with the exception that the to-reach info is obsolete. The best way to get to this station is to take Sheepy Creek Rd off of Hwy 97 and proceed east then SE until you see a water tank (well) and a small corral to the right. There will be a 4x4 track road that you can drive up to within 300 or so yards from the ridge top and station and then pack the rest of the way. High-clearance vehicle necessary. My more accurate coordinates should place you close to these survey marks.

NGS datasheet info:

01/01/1932 by USGS (MONUMENTED)

01/01/1948 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (WRH) THE STATION IS ON A LOW BRUSHY AND ROCKY RIDGE THAT RUNS NORTHEAST TO SOUTHWEST. IT IS ABOUT 2-1/2 MILES SOUTHWEST OF THE SOUTHWEST EDGE OF LOWER KLAMATH LAKE, ABOUT 3 MILES SOUTH OF THE OREGON STATE BOUNDARY, AND ABOUT 4 MILES EAST NORTHEAST OF THE TOWN OF DORRIS. REFERENCE MARK NUMBER 1 IS A STANDARD U.S. GEOLOGICAL SURVEY TRIANGULATION REFERENCE MARK DISK THAT IS SET IN AN OUTCROP OF BEDROCK THAT PROTRUDES ABOUT 3 FEET IN THE SHAPE OF A RIM THAT PARALLELS THE TOP OF THE RIDGE. THE MARK IS STAMPED NO 1 DORRIS RIDGE 1932. MEASUREMENTS AND DIRECTIONS WERE TAKEN TO THE CENTER OF THE ARROWS ON THE REFERENCE MARKS. STATION ZEBRA CAN BE USED FOR AZIMUTH FROM THIS STATION. FOR ADDITIONAL INFORMATION ON THAT STATION SEE THE DESCRIPTION OF SAME. THE STATION CAN BE REACHED FROM THE RAILROAD DEPOT IN THE TOWN OF DORRIS BY GOING EAST ON A GRADED ROAD FOR 4.8 MILES TO A STEEL GATE NEAR A BOARD CORRAL ON THE LEFT. TURN LEFT THROUGH THE STEEL GATE AND PASS THROUGH A RANCH YARD AND A GATE ON THE EAST SIDE OF THE BARN AND CONTINUE ON THE MAIN TRAVELED ROAD FOR ABOUT 3 MILES. TURN RIGHT ACROSS COUNTRY TO THE BASE OF THE HILL AND THE END OF TRUCK TRAVEL. FROM HERE PACK UP THE SLOPE TO A ROCK FENCE THAT FOLLOWS THE WESTERN CREST OF THE RIDGE. TURN RIGHT ALONG THE FENCE AND FOLLOW IT TO THE HIGHEST POINT AND THE STATION.
Condition: Mark found in good condition

Designation: DORRIS RIDGE RM 1

Benchmark Agency: U.S. Geological Survey

Monumentation type: REFERENCE MARK Disk

County: Siskiyou County

USGS 7.5' Topographic Quadrangle Name (optional): Sheepy Lake (1985)

Find type: Searched @ "BM" on a topographic map

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

NGS PID: CD6421

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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