MW0292 - USC&GS 'J 505' BM - Modoc County, CA
Posted by: Groundspeak Premium Member NW_history_buff
N 41° 26.300 W 121° 12.905
10T E 649118 N 4588955
An NGS benchmark located just off Sand Flat Rd.
Waymark Code: WMVPK2
Location: California, United States
Date Posted: 05/14/2017
Published By:Groundspeak Premium Member Ernmark
Views: 1

*NOTE* This benchmark is located on private property owned by a regional lumber company which has posted white placards on trees along this road authorizing public access. Also watch out for logging trucks which may frequent some of these roads. Be respectful of the land! A 4x4 vehicle with high clearance is required for certain sections of un-maintained roadways. Travel ONLY recommended during late spring and summer months due to muddy sections of roads during wet weather months.

I recovered this U.S. & Geodetic Survey benchmark from 1954 in good condition. This disk is also listed on a topography map as 'BM 4585'. The NGS datasheet description is adequate for station recovery although I'm positive the tree with the sign mentioned is gone (this area has been heavily logged). My more accurate coordinates will place you very close to this mark.

NGS datasheet info:

DESCRIBED BY COAST AND GEODETIC SURVEY 1954 12.7 MI SW FROM HACKAMORE. 2.2 MILES SOUTH ALONG A GRADED ROAD FROM THE WATER TOWER AT HACKAMORE, THENCE 1.6 MILES WEST ALONG STATE HIGHWAY 139, THENCE 6.2 MILES SOUTH ALONG LOOKOUT ROAD, THENCE 2.7 MILES SOUTHWEST ALONG A GRADED ROAD, 0.45 MILE EAST OF THE JUNCTION OF A ROAD LEADING NORTH TO LITTLE LAVAS, 0.1 MILE EAST OF THE JUNCTION OF A ROAD LEADING NORTH, ON THE INSIDE OF A LONG CURVE, IN THE TOP OF THE NORTHEAST BASE OF A 5- BY 5-FOOT BOULDER PROJECTING 2 FEET ABOVE THE GROUND, 121 1/2 FEET EAST OF AND ACROSS THE ROAD FROM A 14-INCH PINE TREE SUPPORTING A FOREST SURVICE LOCATION POSTER, 41 1/2 FEET SOUTH OF THE CENTER LINE OF THE ROAD, 0.5 FEET SOUTHWEST OF THE NORTEAST END OF THE BOULDER, AND ABOUT 1 FOOT HIGHER THAN THE ROAD.

Condition: Mark found in good condition

Designation: J 505

Benchmark Agency: U.S. Coast & Geodetic Survey

Monumentation type: BENCH MARK (or B.M.) Disk

County: Modoc County

USGS 7.5' Topographic Quadrangle Name (optional): Crank Mountain (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: MW0292

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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