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Okeltor Mine Buildings

A Grade II Listed Building in Calstock, Cornwall

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Latitude: 50.4994 / 50°29'57"N

Longitude: -4.1947 / 4°11'41"W

OS Eastings: 244443

OS Northings: 68923

OS Grid: SX444689

Mapcode National: GBR NT.KVRY

Mapcode Global: FRA 273Q.TX8

Plus Code: 9C2QFRX4+Q4

Entry Name: Okeltor Mine Buildings

Listing Date: 19 October 1987

Grade: II

Source: Historic England

Source ID: 1140215

English Heritage Legacy ID: 60884

ID on this website: 101140215

Location: Okeltor, Cornwall, PL18

County: Cornwall

Civil Parish: Calstock

Traditional County: Cornwall

Lieutenancy Area (Ceremonial County): Cornwall

Church of England Parish: Calstock

Church of England Diocese: Truro

Tagged with: Building

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SW 46 NW
4/137 Okeltor Mine buildings
Mine buildings including engine house with chimney about 30 metres to north west ;
count house and smithy. Mid - late C19. Slatestone rubble with brick dressings.
Plan: The mine extends from west to east, on the upper bank of the River Tamar,
opposite Gawton om the Devon side. The mine was worked for lead, copper, tin and
arsenic production, and there are a variety of remains of the buildings on site. The
pumping engine house is towards the middle of the side, with chimney to north west.
The count house and smithy are at the west end.
Exterior: The engine house is rectangular, with arched openings with brick dressings.
Bob wall to south. Part of the cylinder plinth, which is 2 wide granite stones,
remains in the centre. The engine house had a 50 inch cylinder draught engine,
operating 75 fathoms of 12 inch plunger lifts and 15 fathoms of 12 inch drawing
lifts, the date of installation being 1864. The chimney is in rubble, circular and
tapered, with brick top and cornice.
The count house is in rubble, single storey with a hipped slate roof ; window to
front and door to side. The smithy is adjacent, also single storey, with corrugated
iron roof ; open fronted.
Other buildings on the site include a dry, boilerhouse, crusher and whim engine
house, Brunton calciner, stamps, buddles, remains of arsenic labrynths and arsenic
chimney. This was one of the most important mines near Calstock, with a quay capable
of taking vessels up to 200 tons. The main engine shaft reached 80 fathoms below the
level of the Tamar, and the main copper load passes under the river into Gawton mine
on the Devon side. Okeltor continued working until 1887.
Sources: Tamar Valley Project. Booker, F.: Industrial Archaeology of the Tamar
Valley 1967. Hamilton Jenkin, A.L.: Mines and Miners of Cornwall 1976.

Listing NGR: SX4444368923

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