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MINES AND MINING - Can you add to our knowledge of the mines in North Hill Parish?

 

Why are there minerals in our parish?

300 million years ago a mass of molten rock pushed up from below the Earth’s crust, underneath what is now South West England. You can imagine the animation below is looking westwards from Dartmoor in the foreground to Bodmin Moor in the distance. You will see the molten rock break into the crust, cool down and suffer erosion to expose the granite uplands we see today. The animation looks into the future when the surface has been further eroded to show the single mass of granite (a batholith) that extends from Dartmoor and onto Bodmin Moor; from there it ranges down through the county to Land’s End and beyond.

 

Reproduced from https://projects.exeter.ac.uk/geomincentre/batholith.htm

The minerals contained in the molten rocks and the surrounding rocks existed in a fluid state and seeped into veins and cracks in the rocks around the edge of the granite mass where they cooled into solid ores. As different minerals solidify at different temperatures the minerals of copper, lead, tin, wolfram and others can generally be found in discrete lodes. North Hill is in the area on the edge of the granite mass of Bodmin Moor where mineral cooling took place in the veins and cracks in the rocks and mines have been driven into the Earth to extract the precious ores.

 

Click to read more.

 

Mines and quarries in the parish

image005.jpg

Map extracted courtesy of AditNow

Click on the available links below to read more.

 

01 - Trebartha-Lemarne Mixed Mine (SX256777)

02 - Luskey Copper Mine (SX261769)

03 - Berriow Mixed Mine (SX271758)

04 - Hawkswood Mixed Mine (SX269756)

05 - Caradon & Phoenix Consoles Mixed Mine (SX272756) (This is Berriow Mine, it was once thought to be another entity that we now know did not exist)

06 - Middlewood Mixed Mine (SX272754)

07 - Kingbear Mixed Mine (SX270750)

08 - Bearah Tor Granite Quarry (SX259745)

09 - Kilmar Tor Granite Quarry (SX253747)

10 - Wheal Rodd Mine (SX286752)

11 - Great Rodd Mixed Mine (SX287752)

12 - Tremollet Mixed Mine (SX297758)

13 - Bodmin Moor East Tin Mine (SX306771)

14 - Trefrize Ochre Quarry (SX306772)

15 - Halwell Ochre Pit Mixed Mine (SX306775)

16 – Wheal Lanoy (SX301784)

 

For more information on the mines go to http://www.aditnow.co.uk/ and input the name of a mine into the search box.

 

01 - Trebartha-Lemarne Mixed Mine

From Venning’s Postal Directory of 1901:

“Trebartha-Lemarne Tin Mine is situate on the Trebartha Estate very near to the mansion of F R Rodd Esq. and is worked at present by water power, and very recently a large outlay has been made in erecting works for separating tin, arsenic and other minerals. It has been worked by a local company for 7 years, Mr J B James of Plymouth is the Purser, and Capt H Bennett of Redmoor [is] the Manager. The mine has a remarkable ancient history.”

What can you tell us about this ‘remarkable ancient history’?

 

 

The two images at the top of this page show (L-R): Hawkswood Mine; the location of Lanoy Mine Engine House taken from the 1841 Tithe map..

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