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U.S. Benchmarks
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Description:
This waymark category is for waymarking and logging any benchmarks recovered in the U.S. and other U.S. territories only.
Expanded Description:
This category is for waymarking:
  1. Benchmarks included in the National Geodetic Survey (NGS) geodetic mark database and/or the Geocaching copy of the NGS database.
  2. Disks and other types of geodetic marks that are listed in local benchmark databases on misc. websites.
  3. Benchmarks that you find, including disks that look just like geodetic disks, such as cadastral disks, right of way disks, and boundary marker disks.
  4. Auxiliary disks including Reference Mark disks and Azimuth Mark disks. (If the auxiliary disk doesn't have its own datasheet but is mentioned in a station disk's datasheet, please provide the URL of the station disk's datasheet.)

Waymarking uses the term "benchmark" to include both bench marks (vertical control) and other geodetic marks (horizontal control), and therefore this category is for waymarking both general types.

This category is fairly strictly limited to disk (and pipe cap and rod) type marks (with a photograph) for fear that too many marks that may appear to be geodetic marks, but are not, might otherwise be included. As of 2/1/2010, the following change is in effect. There are also thousands of survey marks like nails or wood stakes with painted triangles, small round washers, disks less than 2 inches in diameter, survey ribbon, and the like, making it obvious that the marker is a survey point, but this category will not include them. These items that were waymarked prior to 2/1/2010 are grandfathered.

However, non-disk types will be allowed if they are listed in an online database of benchmarks (such as on Geocaching.com) and include objects such as lookout towers, nails, bolts, spires, chiseled squares, etc.

The Agency dropdown menu will grow (manually by the category manager) with mark recoveries.

Instructions for Posting a U.S. Benchmarks Waymark:
As of 2/1/2010, the following change is in effect. There are also thousands of survey marks like nails or wood stakes with painted triangles, small round washers, disks less than 2 inches in diameter, survey ribbon, and the like, making it obvious that the marker is a survey point, but this category will not include them. These items that were waymarked prior to 2/1/2010 are grandfathered.
  1. A closeup photo of the disk taken by you is required.
    If a rod - a photo of the rod under the cover and showing designation on the cover collar is required. rod example
    A second photo taken a few feet from the disk with the disk in view is a very welcome addition!
  2. A description of how to locate the disk is required in the Long Description field. This is particularly important for those marks not listed in an online database.
    Example: 14 feet NE of a 4-inch oak tree and 7 feet W of the face of the curb of Main Street.
    Example: 8 inches inside of the SW corner of the bridge.
    Note: Only general detail is required if the position of the disk is made clear in the second photo.
    Example: near the NW corner of the intersection of 7th Street and Maple Avenue.
  3. Coordinates based on reading your GPS receiver are required. You must use either NAD83 or WGS84 datum.
  4. If you used an online database to find the mark, use either A or B below as applicable.

    1. If you used an online database (Geocaching's, NGS, or a local database) that has an individual URL for each benchmark's datasheet, provide the URL of the benchmark's individual datasheet in the "Web address of this benchmark's datasheet" variable.
    2. If you used an online local benchmark database that does not have an individual URL for each benchmark's datasheet, provide the URL of the database in the "Local database's URL" variable.
Instructions for Visiting a Waymark in this Category:
  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.
Category Settings:
  • Waymarks can be added to this category
  • New waymarks of this category are reviewed by the category group prior to being published
  • Category is visible in the directory
Variables:
  • Condition
  • Designation
  • Benchmark Agency
  • Benchmark Agency (if other)
  • Monumentation type
  • Monumentation type (if other)
  • County
  • USGS 7.5' Topographic Quadrangle Name
  • Special category (optional)
  • Special Category (if other)
  • Find type
  • Web address of this benchmark's datasheet (optional)
  • NGS PID
  • Local database's URL (optional)
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Total Records: 711 Page: 1 of 29 prev<<<[12345678910]>>>next
Image for BM - Contra Costa County, CAview gallery

SS3.7 km

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U.S. BenchmarksBM - Contra Costa County, CA

in U.S. Benchmarks

BM located on the east side of Bailey Road.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 3/17/2010

last visited: 6/18/2011

Image for DIABLO ECC RM 1 1961 marker - Mount Diablo State Park - Contra Costa County, CAview gallery

SS15.1 km

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U.S. BenchmarksDIABLO ECC RM 1 1961 marker - Mount Diablo State Park - Contra Costa County, CA

in U.S. Benchmarks

Survey marker atop Mount Diablo.

posted by: Groundspeak Premium Member saopaulo1

location: California

date approved: 8/25/2008

last visited: 8/29/2012

Image for Benicia RR Bridge Aero Beaconview gallery

WW15.8 km

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U.S. BenchmarksBenicia RR Bridge Aero Beacon

in U.S. Benchmarks

BENICIA RR BR AERO BN - JT2018

posted by: Groundspeak Premium Member Geoides

location: California

date approved: 1/3/2009

last visited: 10/4/2013

Image for Martinez 3323view gallery

WW16.6 km

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U.S. BenchmarksMartinez 3323

in U.S. Benchmarks

Contra Cousta County BM

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/2/2005

last visited: never

Image for Contra Costa County Triangulation 1981 - Martinez, CAview gallery

WW16.7 km

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U.S. BenchmarksContra Costa County Triangulation 1981 - Martinez, CA

in U.S. Benchmarks

A Contra Costa County Triangulation disk on Main St in Martinez, CA.

posted by: Groundspeak Premium Member saopaulo1

location: California

date approved: 1/24/2009

last visited: 2/5/2009

Image for BENICIA ARSENAL FLAGPOLE WAGview gallery

WW17.5 km

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U.S. BenchmarksBENICIA ARSENAL FLAGPOLE WAG

in U.S. Benchmarks

BENICIA ARSENAL FLAGPOLE WAG

posted by: Groundspeak Premium Member Geoides

location: California

date approved: 1/3/2009

last visited: 12/29/2008

Image for E 790 - 1946view gallery

WW19.3 km

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U.S. BenchmarksE 790 - 1946

in U.S. Benchmarks

Benchmark E 790

posted by: Groundspeak Premium Member Geoides

location: California

date approved: 1/5/2009

last visited: 10/4/2013

Image for EBMUD BM 600 on Lafayette Reservoir Damview gallery

SWSW22.7 km

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U.S. BenchmarksEBMUD BM 600 on Lafayette Reservoir Dam

in U.S. Benchmarks

Located on the top of the Lafayette Reservoir Dam. Labeled by paint on the concrete.

posted by: Groundspeak Premium Member TimberToo

location: California

date approved: 4/12/2007

last visited: never

Image for Gaging Station - Brentwood, CAview gallery

EE23.2 km

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U.S. BenchmarksGaging Station - Brentwood, CA

in U.S. Benchmarks

A survey marker in Brentwood, CA.

posted by: Groundspeak Premium Member saopaulo1

location: California

date approved: 10/7/2014

last visited: never

Image for BM3572view gallery

SESE24.1 km

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U.S. BenchmarksBM3572

in U.S. Benchmarks

Disc marked as Benchmark 3572 looks like it was recovered and recently marked on curb.

posted by: Groundspeak Premium Member jellis

location: California

date approved: 10/9/2006

last visited: 10/11/2006

Image for Disk RCE 21615  Fairfield,CAview gallery

NWNW24.5 km

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U.S. BenchmarksDisk RCE 21615 Fairfield,CA

in U.S. Benchmarks

Located in the center of the street.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 2/5/2007

last visited: never

Image for EBMUD C5-B18 ELEVview gallery

WW25.7 km

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U.S. BenchmarksEBMUD C5-B18 ELEV

in U.S. Benchmarks

Metal disc East Bay Municipal Utility District survey marker near Hercules, California.

posted by: Groundspeak Regular Member swmorrisroe

location: California

date approved: 7/23/2009

last visited: never

Image for RIOS - Rio Vista, CAview gallery

NENE27 km

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U.S. BenchmarksRIOS - Rio Vista, CA

in U.S. Benchmarks

The tip of the Eastern tower of the Rio Vista bridge is a benchmark.

posted by: Groundspeak Premium Member saopaulo1

location: California

date approved: 6/25/2009

last visited: 8/1/2009

Image for EBMUD Control Surveyview gallery

WW27.2 km

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U.S. BenchmarksEBMUD Control Survey

in U.S. Benchmarks

It was a cement block with the "EBMUD Control Survey" around the top of the disk and SIMAS is the top center of the disk. 90.09 below the SIMAS and then 1957 in the bottom portion of the disk.

posted by: Groundspeak Premium Member sargenv

location: California

date approved: 1/22/2008

last visited: never

Image for Califorina Street 3455view gallery

WW27.4 km

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U.S. BenchmarksCaliforina Street 3455

in U.S. Benchmarks

Califorina Street over crossing of I-80

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/4/2005

last visited: 9/6/2006

Image for Red Top Controlview gallery

NWNW27.7 km

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U.S. BenchmarksRed Top Control

in U.S. Benchmarks

Orange control mark.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/4/2005

last visited: never

Image for Rodeo Creek (no number)view gallery

WW28 km

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U.S. BenchmarksRodeo Creek (no number)

in U.S. Benchmarks

BM is distressed.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/6/2005

last visited: never

Image for EBMUD ELEV view gallery

SWSW29 km

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U.S. BenchmarksEBMUD ELEV

in U.S. Benchmarks

Metal disc EBMUD ELEV in sidewalk over east side of Caldecott Tunnel in Contra Costa County, California.

posted by: Groundspeak Regular Member swmorrisroe

location: California

date approved: 7/28/2009

last visited: never

Image for Alameda County 49 Boundary Line 1966 Contra Costa Countyview gallery

SWSW29.1 km

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U.S. BenchmarksAlameda County 49 Boundary Line 1966 Contra Costa County

in U.S. Benchmarks

Metal disc boundary marker between Alameda and Contra Costa Counties.

posted by: Groundspeak Regular Member swmorrisroe

location: California

date approved: 7/28/2009

last visited: never

Image for EBMUD BOUNDARY SURVEYview gallery

SWSW29.1 km

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U.S. BenchmarksEBMUD BOUNDARY SURVEY

in U.S. Benchmarks

Metal disc: EBMUD BOUNDARY SURVEY.

posted by: Groundspeak Regular Member swmorrisroe

location: California

date approved: 7/28/2009

last visited: never

Image for Disk LS 4878 Fairfield, CAview gallery

NWNW29.1 km

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U.S. BenchmarksDisk LS 4878 Fairfield, CA

in U.S. Benchmarks

Disk is located on a city street.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 8/22/2006

last visited: never

Image for Disk - Contra Costa County, CAview gallery

WW29.6 km

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U.S. BenchmarksDisk - Contra Costa County, CA

in U.S. Benchmarks

Spotted the witness post!!

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 5/20/2008

last visited: never

Image for 941 5165 TIDAL 4view gallery

WW29.8 km

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U.S. Benchmarks941 5165 TIDAL 4

in U.S. Benchmarks

Benchmark 941 5165 TIDAL 4

posted by: Groundspeak Premium Member Geoides

location: California

date approved: 1/5/2009

last visited: 12/29/2008

Image for Pinole Creek 3133view gallery

WW30.1 km

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U.S. BenchmarksPinole Creek 3133

in U.S. Benchmarks

Sidewalk button BM

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/5/2005

last visited: never

Image for Pinole Creek 7091.Rview gallery

WW30.3 km

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U.S. BenchmarksPinole Creek 7091.R

in U.S. Benchmarks

By the Pinole trail gate on Henry Ave.

posted by: Groundspeak Premium Member BackPak

location: California

date approved: 12/5/2005

last visited: never

Total Records: 711 Page: 1 of 29 prev<<<[12345678910]>>>next
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