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TP21611 - Samson Island
[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
Samson IslandSV91/10SV91S01087853.8312412.510.0002BOLT01/06/194700Bolt in rock

Nearby trigpointsplacenames 

There are 10 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 2719th with 38 other trigs (more).
Has a mean score of 6.33/10 (from 6 logged visits)
Was First logged: 18th Sep 2014
Was Last logged: 5th Jul 2022

Of the 6 logged visits,
2 recorded a location and of these....

All were within 7m
The average error was 4m
The closest was 1m

Mincarlo Mincarlo Crow Point (Tresco) Crow Point (Tresco) Carn Near (Tresco) Carn Near (Tresco) Lloyds Signal Station (St Marys) Lloyds Signal Station (St Marys) CJO CJO jonglew jonglew Samson Island Samson Island [Zoom In/Out] [Hide Labels]

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Selection of photos for this Bolt.



Detailed view of the bolt
See 6 more in the album.

Logged Visits:

Good condition 5th Jul 2022  13:41  by CJO

Gridref: SV 87848 12407   FB Number: Not logged  Condition: Good  Score: 5/10

1” bolt with cut mark and 2 witnes rivets. Bolt midway in between. One rivet on large slab, other on stone in path. Bolt took a bit of finding under turf.

Bolt and cut mark
witness rivet on stone in path
Witness rivet on slab

Good condition 20th Oct 2018  19:48  by Ant1974

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

Good condition 4th Jul 2016  12:17  by peregrinus

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

W end of large rock slab, 2.5m from centre of path. Has BM arrow markings although only two are clear. was in edge of grass, left exposed. 58m N of highest rock.

Good condition 4th Jul 2016  12:15  by dugswell2

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

Appears to have BM arrow markings although only two are clear and was located in the edge of grass, left exposed, 58m N of highest rock with RHW.

Good condition 26th Sep 2015  15:00  by JonT

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

We took a boat trip to Samson whilst staying on Tresco. Found the bolt without difficulty, by following jonglew’s directions, but substituting ‘south’ for ‘north’: ‘flat rock approx 4m E of footpath leading to South Hill summit, and 5m S of deer wall’. The deer wall is an odd thing to find on Samson. Wikipedia explains: ‘The island was inhabited until 1855, when the Lord Proprietor Augustus Smith removed the remaining population from the island. By this point, the population was found to be suffering from severe deprivation—particularly due to a diet of limpets and potatoes—and consisted of only 2 families: the Woodcocks and the Webbers. Smith then built a deer park on the island, but all the deer escaped.’

General view of the bolt, looking towards St Marys ©JonT
Detailed view of the bolt ©JonT
The flat rock in which the bolt is fixed ©JonT

Good condition 18th Sep 2014  11:22  by jonglew

Gridref: SV 87852 12412   FB Number: Not logged  Condition: Good  Score: 7/10

Rivet-sized bolt in flat rock approx 4m E of footpath leading to South (corrected from North after reading subsequent loggers comments!) Hill summit, and 5m N of deer wall. Well spotted by Mrs G after extensive search of likely rocks in the area. ***Update 12 Jul 2016. With hindsight wonder if this is in fact a witness rivet to the actual bolt. Further investigation required. ***Re-visited 5 Jul 2022. 1" Bolt located close to track, also an additional witness rivet, to that located in 2014, was located on the track; the Bolt between the 2.

One of the Witness Rivets TP21611©jonglew
Witness Rivet TP21611©jonglew
Witness Rivet TP21611©jonglew
WitnessRivet - Detail TP21611©jonglew

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