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TP7804 - Hounslow Heath Baseline South-east
 
[UK map]
Grid reference :
TQ 13719 70985 map
Type :
Cannon
Condition :
Good Good condition
Current use :
None
Historic use :
Other
T:UK waypoint :
TP7804
County :
Greater London
Nearest town :
HAMPTON HILL

Nearby trigpoints, placenames 

There are 20 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 270th with 8 other trigs (more).
Has a mean score of 7.38/10 (from 29 logged visits)
Was First logged: 10th Mar 2010
Was Last logged: 21st Jun 2023

Of the 29 logged visits,
9 recorded a location and of these....
All were within 9m
The average error was 3m
3 were exact

[map]
[key]
KEMPTON PARK KEMPTON PARK HANWORTH PARK HANWORTH PARK SUNBURY COURT SUNBURY COURT HANWORTH HANWORTH WEST MOLESEY WEST MOLESEY HAMPTON HAMPTON HAMPTON HILL HAMPTON HILL HURST PARK HURST PARK HAMPTON CT BRIDGE HAMPTON CT BRIDGE STRAWBERRY HILL STRAWBERRY HILL BUSHY PARK BUSHY PARK Jobs Dairy Hanworth Jobs Dairy Hanworth Hanworth Park Hotel Hanworth Park Hotel Bessborough Resr Bessborough Resr Kempton Park East Resr Kempton Park East Resr Stain Hill Resr Stain Hill Resr Prices Bakery Hanworth Prices Bakery Hanworth West Molesey Church Tower Cross West Molesey Church Tower Cross St James Church Spire Hampton Hill St James Church Spire Hampton Hill Hampton Church Tower Hampton Church Tower East Molesey Church Spire East Molesey Church Spire Molesey St Marys Church Spire Molesey St Marys Church Spire Fortescue Boys Home Fortescue Boys Home Teddington Teddington NPL Teddington NPL Teddington Hampton Court Palace Hampton Court Palace St Marys College St Marys College Admiralty Research Tower Admiralty Research Tower Savoy Cinema Teddington Savoy Cinema Teddington Ragged Robin Ragged Robin VinceTP VinceTP orlando rat orlando rat dal dal Mickandkim Mickandkim arranc arranc jonglew jonglew lonesome_cowboy_burt lonesome_cowboy_burt TrigJS TrigJS Hounslow Heath Baseline South-east Hounslow Heath Baseline South-east [Zoom In/Out] [Hide Labels]

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Selection of photos for this Cannon.

The Cannon
By Moacky
Site
©painterman61
Hello
©painterman61
Top
©painterman61
Plaque on fence behind Trig
By Ragged Robin
See 15 more in the album.

Logged Visits:

Good condition 21st Jun 2023  12:59  by Trigobsession

FB Number: Not logged  Condition: Good  Score: 7/10


Good condition 14th May 2022  14:09  by Moacky

FB Number: Not logged  Condition: Good  Score: 9/10

I decided to spend today visiting the two Cannons of General Roy’s Baseline.

The Cannon


Good condition 14th May 2022  14:09  by Moacky

FB Number: Not logged  Condition: Good  Score: 9/10

I decided to spend today visiting the two Cannons of General Roy’s Baseline.


Good condition 15th Dec 2021  14:35  by painterman61

FB Number: Not logged  Condition: Good  Score: 10/10

Second of the famous cannons still in the original position .

Site ©painterman61
Top ©painterman61
Hello ©painterman61


Good condition 24th Oct 2020  18:04  by thejackrustles

FB Number: Not logged  Condition: Good  Score: 10/10

Managed to get there just before dark. Location not what I expected at all. 10 for historical significance.


Good condition 23rd Aug 2020  15:10  by COVID Trig Point Challenge

FB Number: Not logged  Condition: Good  Score: 8/10

This must be the easiest one to find so far! Interesting sibling to the one at Heathrow with the added bonus of significant street and house names around it.


Good condition 27th Jun 2019  11:25  by RAH

FB Number: Not logged  Condition: Good  Score: 8/10

It appears someone has spent a bit of time and possibly money sorting this cannon out. I was expecting the worst, but the grass was neatly cut, the cannon in good order and the sign re erected. These two cannon deserve care and attention.


Good condition 29th Jun 2018  09:49  by Ted Mariner

FB Number: Not logged  Condition: Good  Score: 8/10

8 out of 10 for historical significance. Good to see the cannon in a tranquil location clearly being well looked after. Parked up a few meters away and strolled over to take pics and and log.

The Cannon


Good condition 5th Apr 2018  19:53  by TrigJS

Gridref: TQ 13716 70994   FB Number: Not logged  Condition: Good  Score: 9/10

Cannon is still there. Good location in a residential area.

TP7804 The cannon.


Good condition 28th Mar 2017  19:27  by VinceTP

Gridref: TQ 13719 70983   FB Number: Not logged  Condition: Good  Score: 8/10


Good condition 28th Aug 2016  14:37  by orlando rat

Gridref: TQ 13719 70985   FB Number: Not logged  Condition: Good  Score: 7/10

I love these unusual types. I parked around the corner and walked to the location and I enjoyed finding the cannon. Who wouldn't?

Hounslow Heath Baseline South-east


Good condition 25th Aug 2016  14:41  by lonesome_cowboy_burt

Gridref: TQ 13721 70988   FB Number: Not logged  Condition: Good  Score: 7/10

Good information plaque behind the cannon. Grass cut


Good condition 23rd Aug 2016  08:24  by Trigger

FB Number: Not logged  Condition: Good  Score: 5/10

TP7804


Good condition 7th Dec 2014  10:47  by jonglew

Gridref: TQ 13718 70989   FB Number: Not logged  Condition: Good  Score: 7/10

SE end of William Roy's original baseline across Hounslow Heath. Site not so well kept as at the other end. On small patch of spare gound off the appropriately named Roy Grove, between house numbers 7 and 9.

Cannon TP7804©jonglew
Cannon TP7804©jonglew


Good condition 3rd Mar 2014  12:58  by SlainteJimmy

FB Number: Not logged  Condition: Good  Score: 5/10

Nicely historic.. safe in it's cul-de-sac, suburban neighbourhood.

Hounslow Heath Baseline South-East ..Boom Boom.


Good condition 5th Dec 2013  13:02  by Trigpoint100

FB Number: Not logged  Condition: Good  Score: 7/10

Now have a pair of cannons, both ends of the baseline. In excellent condition considering how old it is, and the amount of development which has overtaken it. Lovely walk across Bushy Park from NPL, and then onwards to Kingston via the LOOP - neither parakeets nor the advertised dangerous wild deer in evidence!


Good condition 27th Feb 2013  10:40  by arranc

Gridref: TQ 13719 70988   FB Number: Not logged  Condition: Good  Score: 8/10

My fourth and last cannon. 27,404' indeed! Given an 8 for historical reasons. Roy Grove - a nice touch.


Good condition 25th Aug 2012  08:30  by Mickandkim

Gridref: TQ 13719 70985   FB Number: Not logged  Condition: Good  Score: 4/10

Easy find on Roy Grove


Good condition 4th May 2012  07:12  by THE CYCLIST

FB Number: Not logged  Condition: Good  Score: 5/10

Visited after cannon at Heathrow, en route from Jordans YHA to Telscombe YHA (near Newhaven). No problem finding with aid of Website map and OS map.


Good condition 2nd May 2012  15:15  by asbown

FB Number: Not logged  Condition: Good  Score: 5/10

couple hours walk from the other end at Heathrow.


Good condition 12th Jan 2012  13:41  by Phil Clayton

FB Number: Not logged  Condition: Good  Score: 8/10

3rd visited during walking and bus pass trip round west London. R86 from Teddington after Ham bolt. Now for Heathrow and the other end.


Good condition 7th Jan 2012  10:15  by robinhood

FB Number: Not logged  Condition: Good  Score: 9/10

Visited this one the day after the corresponding memorial at Heathrow. At end of a cul-de-sac on Roy Grove, in a well maintained circle of grass though the info plaque is looking worn out. I'm glad its been kept up for mappites to enjoy.


Slightly damaged 2nd Jan 2012  14:02  by Ragged Robin

Gridref: TQ 13720 70980   FB Number: NONE  Condition: Slightly damaged  Score: 5/10

The cannon is in fair condition but the top plate is missing ( only infill wood showing )

Cannon Plate missing
Plaque on fence behind Trig


Good condition 24th Sep 2011  19:42  by struggling

FB Number: Not logged  Condition: Good  Score: 10/10

Easy to locate. Quite amazing that such an historic site is found with little fanfare (other than the plaque erected in 1926) in a suburban cul-de-sac. Fascinating that it all started here!

Cannon Barrel (Mum & Gar)
Baseline East - Plaque


Good condition 2nd Aug 2011  20:15  by cmb1953

FB Number: Not logged  Condition: Good  Score: 7/10

Easy find. Interesting info on plaque.


Good condition 11th Mar 2011  18:10  by dal

Gridref: TQ 13719 70985   FB Number: Not logged  Condition: Good  Score: 7/10

On Roy Grove. The grid ref is as per listing - my GPS was to within 2m. The listing says: "Cast-iron cannon monument, installed 1791 to mark the south-eastern end of the baseline measured by General Roy in 1784 across Hounslow Heath, from King's Arbour to Hampton Poor House, which is now taken to be the origin of the Ordnance Survey." See http://www.britishlistedbuildings.co.uk/en-432627-monument-at-south-eastern-end-of-general. Note the name of this one is generally given as Hampton Poor House. The cannon at the other end is at Heathrow.

Cannon and plaque
Cannon
Plaque


Good condition 29th Aug 2010  15:00  by peregrinus

FB Number: Not logged  Condition: Good  Score: 6/10

Post-flight bagging - this and a few non-pillar flush brackets.


Good condition 3rd Apr 2010  12:29  by descarte1

FB Number: NO FB  Condition: Good  Score: 8/10

South-eastern end of the Roy baseline (the other end being at Heathrow). In Roy Close. In good nick with uppermost end sporting a wooden plug. Interesting plaque. Went from here towards Mortlake bagging OS related stuff en route...


Good condition 10th Mar 2010  07:47  by Griefmiester

FB Number: Not logged  Condition: Good  Score: 8/10

Visited in March 2010 but was unable to get listed - well done Dal! - interesting site as this is where it all started.


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