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Gauge Station Ref Mark - does it have a PID?


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Don't confuse USGS (US Geological Survey) who made the maps versus the NGS (National Geodetic Survey, formerly called US Coast and Geodetic Survey).

NGS maintains the master control network of lat/lon and elevation references. USGS worked off of those and set many additional disks or other marks as needed for mapping and water monitoring.

If NGS happened to find a USGS point convenient they may have measured it to their standards and added it to their data base, but that is a minority of USGS marks.

USGS never computerized their data sheets, and most are only available from filing cabinets.

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Note  

USGS is an agency in the Dept of the Interior

NGS is an agnecy in the Dept of Commerce, Nat'l Oceanic and Atmospheric Administration (NOAA)

 

They have/had different mandate/missions. USGS does NOT publish a lot of their work unless requested.  I knew of the USGS guys at a local water level branch as they had a field office in our DOT bldg. They monitored water levels and did stream surveys on those tributary to Lake Michigan and Superior. Their info was office specific and a lot of the data collection has been automated now. 

Edited by Z15
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I am curious about the location of this disk.  However, the coordinates provided don't appear to be the location of an old bridge, or where a gaging station would be located.  These coordinates plot to a location in a field.  

Capture.JPG

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