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Wallingford Fundamental Bench Mark   


Location
Grid reference: SU 62485 88187.
Landranger 175: Reading & Windsor, Henley-on-Thames & Bracknell.
Explorer 171: Chiltern Hills West.
GPS network passive station: H1SU6288.
Waypoint: FM0543.

Neighbouring Flush Brackets
G1791 Carmel College Lodge 876.65m to the west.
G1787 Blenheim Farm 1.10km to the east.
2034 Blenheim Farm 1.11km to the east.
G3637 Crowmarsh Gifford, 7 Benson Lane 1.39km to the northwest.
10 Newnham Murren, St Mary's Church 1.48km to the west.
The nearest fundamental bench mark is Buckland, 30.40km to the west.

Second Geodetic Levelling, England & Wales (1912-21)
This fundamental bench mark was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 311.5220 feet [94.9519 metres] above mean sea level (Newlyn datum). It was included on the Basingstoke to Wallingford, Great Linford to Wallingford, Wallingford to Buckland and Windsor Castle to Wallingford levelling lines.

Third Geodetic Levelling, England & Wales (1950-68)
This fundamental bench mark was used during the Third geodetic levelling, England & Wales, and was levelled with a height of 311.5220 feet [94.9519 metres] above mean sea level (Newlyn datum). It was included on the Basingstoke to Wallingford, Great Bedwyn to Wallingford, Hemel Hempstead to Wallingford, Wallingford to Buckland and Wallingford to Windsor Castle levelling lines.

Logged Visits
Visited on 3rd November 2016 by Dugswell2. Grid reference: SU 62485 88187. Condition: Good.
My 200th passive trig in its playpen overgrown with weeds and no longer photogenic.

Visited on 27th January 2016 by Orlandos_Rat. Grid reference: SU 62485 88187. Condition: Good.
The FBM could just be spotted due to the amount plant growth. The "playpen" protected the FBM.

Visited on 3rd December 2014 by jochta. Condition: Good.
I was cycling past and noticed that the footpath sign has been moved and was surrounded by concrete blocks. Initially I thought the playpen had been removed and the FBM destroyed but it's behind the hedge safe and sound and particularly clear of vegetation at the moment.

Visited on 27th September 2014 by GeoMyck. Grid reference: SU 62485 88187. Condition: Good.
Last time I came to see this one it was so overgrown could even see the playpen but today was litter free and not as overgrown

Visited on 22nd November 2013 by jonglew. Grid reference: SU 62482 88191. Condition: Good.
Not as much fly-tipped rubbish as the previous logger found but still plenty there. Cleared out anything from the playpen and did a little gardening - cut down the thorn tree growing in there. No height tag, first FBM I've seen where it's fixing point is on one of the side plates. Top has an oversized bolt affixed. Photos at:
http://www.jonglew.com/Walking/Benchmarks/2013/20131122-WallingfordOxfordshire-FBM-1.jpg
http://www.jonglew.com/Walking/Benchmarks/2013/20131122-WallingfordOxfordshire-FBM-2.jpg
http://www.jonglew.com/Walking/Benchmarks/2013/20131122-WallingfordOxfordshire-FBM-3.jpg

Visited on 9th July 2011 by mickandkim. Grid reference: SU 624 881. Condition: Good.
In good order

Visited on 14th May 2010 by Griefmiester. Condition: Good.
Easily located FBM - a bit over grown - nice area - farmland views

Visited on 26th February 2010 by spuduka. Condition: Good.
Found after driving past at first. Still full of rubbish but is easily visible and in good condition.
http://www.geograph.org.uk/photo/1729759

Visited on 20th February 2010 by Calico. Condition: Good.

Visited on 18th October 2009 by SpankyBanksy. Condition: Good.
In its cosy cot surrounded by rubbish and someone done some fly tipping as well. Couldn't find the cache for all you geocachers out there.

Visited on 23rd June 2007 by RogerTempleman. Condition: Good.
Condition good, but enclosure used for garden waste disposal, and also an old pushchair on top of the block. Photo showing the block (taken after rubbish and vegetation cleared by Jon Glew) at http://www.geograph.org.uk/photo/3769891 and wider view at http://www.geograph.org.uk/photo/3769915

Visited on 8th December 2006 by Bagge9905. Grid reference: SU 684 881. Condition: Good.
Visted 14/8/05 by MJF. FBM in railed enclosure alongside a fieldgate. Rather overgrown.

Visited on 28th June 2004 by jochta. Condition: Good.
Rather overgrown but easy to find with its railed enclosure. http://maps.jochta.com/benchmarks.php?id=13
If you have any corrections or additions to this record, please let us know.
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