No Data Sheet

[+theprospectors]

I located a BM 852 on a topographic map. Entered the Lat / Long in the NGS search engine and found a monument designation LX 7202 at that location. It is not listed in the geocaching.com data base and neither are several others which according to the Topo are in the same general area. When I pulled up the Data Sheet I got the following (see below). What does it mean? - is the monument no longer there? The explanation code seems to indicate that it is "Restricted" - Sorry but I'm confused.

 

-----------------------------------------------------------------------------

- This listing contains control for which complete digital -

- data sheets where not provided. The complete data sheets were -

- not provided for the reason listed below. The reason below is -

- associated with a horizontal control Nonpub code shown under -

- the heading 'H' and/or a vertical control Nonpub code shown under -

- the heading 'v' -

- -

- The format of the records are as follows: -

- Pid = Station Permanent Identifier) -

- Name = Station Designation -

- Lat = Approx. Latitude (Degrees, Minutes, truncated Seconds) -

- Lon = Approx. Longitude (Degrees, Minutes, truncated Seconds) -

- O = Horizontal Order -

- o = Vertical Order -

- H = Horizontal Nonpub Code -

- v = Vertical Nonpub Code -

- -

- H Nonpub HORIZONTAL CONTROL NONPUB REASON -

- -------- -------------------------------- -

- X Surface Mark Reported Destroyed -

- Y Surface and underground mark reported destroyed -

- A A-Order Horizontal mark not tied to an adjusted HARN -

- C C-Nonoperational CORS Station -

- W Weakly determined position. -

- P Purpose of position is not for network control -

- D No Descriptive Text available -

- R Restricted position -

- O Outside NGS Publication Area -

- N No geodetic control at this mark -

- -

- v Nonpub VERTICAL CONTROL NONPUB REASON -

- -------- ------------------------------ -

- X Surface Mark Reported Destroyed -

- Y Surface and underground mark reported destroyed -

- F Bench Mark not yet adjusted. -

- D No Descriptive Text available -

- Z Presumed destroyed -

- R Restricted elevation -

- O Outside NGS Publication Area -

- N No geodetic control at this mark -

- -

- -

- NOTE - Stations found in this listing may still have a valid -

- datasheet produced by use of other publishable values. -

- For example, an ADJUSTED height may be non-publishable -

- but a good GPS height might be found on the datasheet. -

- This listing does not imply that values found on the datasheet -

- are restricted. If it's on the datasheet, use it. -

- -

-----------------------------------------------------------------------------

Pid Name Lat Lon Elev O o Hv

------ ------------------------------ ---------- ----------- -------- - - --

>LX7202 5840 41 30 17.7/072 58 45.9 2 R

[Z15]

I pulled it up to look.

 

-----------------------------------------------------------------------------

Pid Name Lat Lon Elev O o Hv

------ ------------------------------ ---------- ----------- -------- - - --

>LX7202 5840 41 30 17.7/072 58 45.9 2 R

>LX7202 5840 41 30 17.7/072 58 45.9 2 NN

 

See the letters at the end of the lines? Those are codes to what shown in the list above.

 

R means a restricted position(H)

NN - Means there is no position(H) or elevation(v) available for this mark.

 

Why I have no idea, maybe is was moved or its in an unsatble area etc. These are only guess's as you are likely not to find out. It could be that the survey data it not reliable and publishing it would give it legitimacy.

 

Also note BM 852, the 852 would refer to the elevation, 852 meters

 

Where in the US is this located?

Edited May 11, 2005 by Z15

[+theprospectors]

Thanks Z15. It is located in the center of the town of Prospect, Connecticut. I'm very familiar with the area. From the location on the topographical map it is next to a main road in a maintained area - grassy - mowed etc.

 

I may just poke around to see if I see anything. I know the road was laid in the 1930's. I'm sure it has been rebuilt and widened several times since then but I don't recall any work being done in recent memory.

 

I really just wasn't sure what "restricted" meant. Thanks for the help.

 

The elevation would be in feet in this case - 852 feet would be right for our area.

I wish we were 852 meters - the skiing would be better!

 

Yours aye,

Edited May 11, 2005 by theprospectors