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Descriptive text added in a dnf recovery?


LSUFan

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Posted

Good evening everyone. I have been perusing our local benchmarks for ones that have dnf recoveries, to see if we might can find them after all.

 

When looking at CQ0342, I ran across something that may just be a typo, but got my curiosity up..... as I have not noticed one similar to it before.

 

According to the datasheet, it appears this mark was placed in 1938 by the CGS without any description. The next recovery is a dnf in 1952 by the USGS, but the description is added to the datasheet in this dnf entry.

 

In your opinion, would this just be a data entry error when the datasheet was put in the database........... or would the USGS have wrote the description for it in 1952 (which I couldn't see how they could if they didn't actually find the mark, unless they had the original CGS description somehow)?

 

My thinking, is maybe the 1952 entry was actually a find, instead of a dnf. Can the ones with much more wisdom here, share their opinions on this, please?

Posted

I have always figured that these are marks where the descriptive text was created during the more recent recovery--1952 in your case--not because the recovery was really a Found, but because the description was in a different location (file folder perhaps?) and was used for the 1952 recovery, then entered as part of the Not Found portion of the recovery. Maybe it was a different agency. Your example has the CGS setting the mark and the USGS recovering the mark (although I would expect the reverse of this to happen).

Posted

 

According to the datasheet, it appears this mark was placed in 1938 by the

CGS without any description. The next recovery is a dnf in 1952 by the USGS,

but the description is added to the datasheet in this dnf entry.

 

 

LSUFan,

 

This DS format where the description does not show up on the original history line

is quite common for both found and not found recoveries.

 

Below are portions of a DS for one that I am in the process of doing a MARK NOT FOUND

recovery with the explanation that the structure has been capped to retain the added ballast

when the tracks were raised.

 

I find it somewhat interesting in that they had the information to describe it but give

the MONUMENTED date as UNK. It is one of the Precise Level points listed in Special

Publication #18 on the 1908 run from Crawford NE to Cadiz Wyo.

 

OU0009 DESIGNATION - X 4

 

OU0009_MARKER: B = BOLT

OU0009_SETTING: 36 = SET IN A MASSIVE STRUCTURE

OU0009_SP_SET: BRIDGE

OU0009_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL

OU0009

OU0009 HISTORY - Date Condition Report By

OU0009 HISTORY - UNK MONUMENTED CGS

OU0009 HISTORY - 1957 MARK NOT FOUND NGS

OU0009

OU0009 STATION DESCRIPTION

OU0009

OU0009'DESCRIBED BY NATIONAL GEODETIC SURVEY 1957

OU0009'0.8 MI SE FROM DEWEY.

OU0009'0.8 MILE SOUTHEAST ALONG THE CHICAGO, BURLINGTON AND QUINCY

OU0009'RAILROAD FROM DEWEY, CUSTER COUNTY, AT BRIDGE 495.00, ON THE EAST

OU0009'END OF THE NORTH CONCRETE ABUTMENT, AND 8 FEET EAST OF THE

OU0009'CENTERLINE OF THE MAIN TRACK. A COPPER BOLT.

 

kayakbird

Posted

I've seen this before, and plenty of times.

I always figured the description was in a file separate from the raw data used to create the datasheets in these cases. Most times its a CGS mark, and the recovery with the description is by either the NGS or the USGS.

I just figured the NGS didn't trust those CGS boys until they went to look for themselves... B)

Posted (edited)

Back in the old days the recovery form required that you include the description of the mark not found. I suppose that was done so others could compare records. Keep in mind they never envisioned then that records would be as they are today. Back then everything was typed up manually and sometimes took years and years to be seen by others. People come and go and new people seldom care about what wen to before them. This was government bureaucracy and they created tons of paperwork, much of what was not considered important by many and just stored in some basement somewhere and forgot about for decades.

 

Also when they show the monumented date as "UNK" it was likely because at the time to the field report, they did not have any records indicating when it was monumented. Communications were NOT like today. Many, many times the right hand never knew what the left hand was doing and finding a lot of information would take years if not decades to uncover. It was job security to keep things under lock and key and not share.

Edited by Z15

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