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TP21621 - St Helens
[UK map]
Grid reference :
Type :
Condition :
Good Good condition
OSGB36 Station :
Current use :
Historic use :
T:UK waypoint :
County :
Isles of Scilly
Nearest town :

OSGB36 trig archive spreadsheet - IW
St HelensSV91/4SV91S00490090.7316964.200.0002BOLT01/06/194700Bolt in rock

Nearby trigpointsplacenames 

There are 11 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 1621st with 31 other trigs (more).
Has a mean score of 6.71/10 (from 7 logged visits)
Was First logged: 21st May 2016
Was Last logged: 5th Jul 2022

Of the 7 logged visits,
2 recorded a location and of these....

All were within 4m
The average error was 3m
The closest was 3m

Watch Hill (Bryher) Watch Hill (Bryher) Beacon Hill (Tresco) Beacon Hill (Tresco) jonglew jonglew CJO CJO St Helens St Helens [Zoom In/Out] [Hide Labels]

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Selection of photos for this Bolt.



See 7 more in the album.

Logged Visits:

Good condition 5th Jul 2022  11:16  by CJO

Gridref: SV 90087 16965   FB Number: Not logged  Condition: Good  Score: 5/10

In grassy depression just south of summit. Jon and myself dig the turf away and there it was. Three witness rivets also found.

Close up
witness 1
witness 2
witness 3

Good condition 5th Jul 2022  11:10  by jonglew

Gridref: SV 90086 16963   FB Number: Not logged  Condition: Good  Score: 7/10

Large bolt, ~2.5" dia, found in a grassy depression ~3m S of the summit rock. Dug out by Chris and I. Unsure if it's installed in concrete or rock as insufficient turf surrounding it was cut away. 3 witness rivets located on nearby outcrops.

Bolt - Location with respect to summit cairn TP21621©jonglew
Bolt TP21621©jonglew
Bolt - Detail TP21621©jonglew

Inaccessible 20th Oct 2018  19:48  by Ant1974

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

Good condition 3rd Jul 2016  15:54  by Chalky

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

Good condition 2nd Jul 2016  14:15  by dugswell2

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

OS bolt found with RHW under turf in a depression near summit.

Good condition 2nd Jul 2016  14:02  by peregrinus

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

2.5" bolt in block in depression 3m south of highest grassy rock. was covered in turf, left open. fine views of Round Island, Men-a-Vaur stacks and Scilly archipelago. Group charter with Martin Jenkins. Landed S side, path from old quarantine building heads R round coast then up to summit.

Inaccessible 21st May 2016  19:30  by JonT

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

It is possible to land on St Helenís, though it would probably mean hiring a boat. Bennett Boatyard is based at Green Bay on Bryher, but has hire points on St Martinís and can deliver to Tresco by arrangement (see Perhaps next time I visit Scilly Iíll hire a boat and visit this trig point. Until then, St Helenís is easily seen from both Tresco and St Matinís.

General view of St Helenís from Tresco at low tide ©JonT
General view of St Helenís from Tresco at high tide The lighthouse is not on St Helenís, but on Round Island, north of St Helenís ©JonT
View of summit on St Helens, with the Pest House below The Pest House was a C18th isolation hospital ©JonT

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