DX0609 - USCGS 'A 517' BM - Riverside County, CA
Posted by: Groundspeak Premium Member NW_history_buff
N 33° 34.133 W 116° 05.167
11S E 584820 N 3714730
This NGS benchmark is located along 66th Ave. in Riverside County, CA.
Waymark Code: WMKDTJ
Location: California, United States
Date Posted: 03/27/2014
Published By:Groundspeak Premium Member Ernmark
Views: 2

I recovered this U.S. Coast & Geodetic Survey benchmark from 1955 in good condition. It is monumented on top of a round concrete post and near an orange carsonite witness post, which made station recovery possible. This mark contains the designation stamping of 'A 517' and is also listed on a topography map as 'BM -195'. The posted coordinates are from the NGS datasheet and should place you reasonably close to this mark.

NGS datasheet info:

01/01/1955 by CGS (MONUMENTED)

01/01/1974 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1974 0.5 MI W FROM MECCA. 0.5 MILE WEST ALONG STATE HIGHWAY 195 FROM THE JUNCTION OF STATE HIGHWAY 111 AT MECCA, 0.4 MILE WEST OF THE JUNCTION OF LINCOLN STREET, 37 1/2 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY, 119 1/2 FEET SOUTHWEST OF AND ACROSS THE HIGHWAY FROM TELEPHONE POLE 40408 CWT, 94 FEET SOUTHEAST OF AND ACROSS THE HIGHWAY FROM POWER LINE POLE 4161D, 113 FEET WEST OF THE CENTER OF THE SOUTH END OF 36-INCH CONCRETE PIPE CULVERT, 1.4 FEET EAST OF A WITNESS POST, 1.4 FEET WEST OF A WITNESS POST, ABOUT 1/2 FOOT HIGHER THAN THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND. SEC 18, T 7 S, R 9 E.

01/01/1976 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 RECOVERED IN GOOD CONDITION.

01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 RECOVERED IN GOOD CONDITION.

01/01/1988 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. NEW DESCRIPTION FOLLOWS. 0.7 KM (0.45 MI) WEST ALONG STATE HIGHWAY 195 FROM THE JUNCTION OF STATE HIGHWAY 111 IN MECCA, 11.7 M (38.4 FT) SOUTH OF THE HIGHWAY CENTERLINE, 33.2 M (108.9 FT) NORTHWEST OF A 6 BY 10 FT METAL BUILDING, 6.2 M (20.3 FT) EAST OF THE CENTER OF A DIRT ROAD. THE MARK IS 0.30 METERS E FROM A WITNESS POST THE MARK IS ABOVE LEVEL WITH THE HIGHWAY.
Condition: Mark found in good condition

Designation: A 517

Benchmark Agency: U.S. Coast & Geodetic Survey

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

County: Riverside County

USGS 7.5' Topographic Quadrangle Name (optional): Mecca (1972)

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

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

NGS PID: DX0609

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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