Circle 4.5 miles NW of Merthyr Tydfil

11 Jul 2017 18:17 #1 by Peter Kirk
Circle 4.5 miles NW of Merthyr Tydfil was created by Peter Kirk
By pure accident I came across a circle of rubble or concrete about 4.5 miles NW of Merthyr Tydfil at SN 98321 10873 on GE. It measures 80 feet in diameter and is about 10 foot thick (60 foot inner diameter). It looks like an early war bombing target, but that is what I want it to be :) It was also there in 1945 and showed up as light, possibly white.

Any ideas what it could be?

A number of ranges or at least target areas were set up or being looked at in Wales for both live and practice bombing, the latter as part of a cross country navigational exercise. Trawsfynydd was set up as a live range in 1940 but this was an existing War Office range being used as a stop-gap by the RAF.

No Amount Of Evidence Will Ever Persuade An Idiot (probably not Mark Twain)

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12 Jul 2017 06:17 #2 by PETERTHEEATER
Replied by PETERTHEEATER on topic Circle 4.5 miles NW of Merthyr Tydfil
This site is a Guest house on the moor just SW of the feature. If you read through the owners responses to reviews by former guests it mentions a Bronze Age stone circle:

www.tripadvisor.co.za/ShowUserReviews-g1...onal_Park_Wales.html

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12 Jul 2017 06:23 - 12 Jul 2017 06:23 #3 by Iain Taylor
Replied by Iain Taylor on topic Circle 4.5 miles NW of Merthyr Tydfil
Old archaeology rather than modern.

188x OSGB 1:2500 / 'curren't google earth aerial

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12 Jul 2017 06:31 #4 by PETERTHEEATER
Replied by PETERTHEEATER on topic Circle 4.5 miles NW of Merthyr Tydfil
Looking around using that 19th century map there are many more circles shown.

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12 Jul 2017 08:41 - 12 Jul 2017 08:58 #5 by Peter Kirk
Replied by Peter Kirk on topic Circle 4.5 miles NW of Merthyr Tydfil
Thanks. I wonder why this was the only one to stand out after all these centuries?

The location on Wednesday 1945

No Amount Of Evidence Will Ever Persuade An Idiot (probably not Mark Twain)

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27 Jul 2017 00:02 #6 by Iain Taylor
Replied by Iain Taylor on topic Circle 4.5 miles NW of Merthyr Tydfil
Looking at this again I'd say it was a gin circle given the central marking an sign of a shaft to the left.

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27 Jul 2017 09:06 #7 by PETERTHEEATER
Replied by PETERTHEEATER on topic Circle 4.5 miles NW of Merthyr Tydfil
In that case, would there not be evidence of other gin circles adjacent to the other shafts. I should expect circles where horse powered whim gins were in use but not with engine powered.

Perhaps these were man-powered with Welsh labour:)

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02 Aug 2017 07:21 #8 by Iain Taylor
Replied by Iain Taylor on topic Circle 4.5 miles NW of Merthyr Tydfil

In that case, would there not be evidence of other gin circles adjacent to the other shafts.


Not necessarily Peter. That would depend on the depth of the various shafts (and most will be not be very deep) and the structure of the mining underneath. It's normal to collect material and transport it to one shaft for removal when at depth as that means less time spent removing non-profitable overburden.

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02 Aug 2017 08:13 #9 by mbriscoe

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