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Latitude: 50.2357 / 50°14'8"N
Longitude: -5.1628 / 5°9'46"W
OS Eastings: 174552
OS Northings: 42092
OS Grid: SW745420
Mapcode National: GBR Z7.C8Z0
Mapcode Global: FRA 082D.NGR
Entry Name: Consolidated Mines, Engine House
Listing Date: 21 November 1985
Source: Historic England
Source ID: 1136409
English Heritage Legacy ID: 63192
Location: Gwennap, Cornwall, TR16
Civil Parish: Gwennap
Built-Up Area: United Downs industrial Park
Traditional County: Cornwall
Lieutenancy Area (Ceremonial County): Cornwall
Church of England Parish: Gwennap
Church of England Diocese: Truro
SW 74 SW
4/94 Consolidated Mines, Engine House
Beam engine house ruin. Circa early C19. Killas rubble with granite voussoirs, some
jambstones, and lintel to ground floor, east, otherwise wooden lintels and wooden
bearing pads for floors. Rectangular plan with thicker bob wall to north, surviving
to full 2 floor height, formerly timber studded gable over. Originally with 3
floors. South wall partly built into bank is mostly fallen. West wall ½ fallen.
East wall survives at north end to full 3 floor height, with 1 window to ground
floor, right and 2 windows to first floor (left window blocked).
Bob wall has arched ground floor opening with dressed granite jambstones and
voussoirs. Designed for load bearing, outer half of doorway is narrower with
segmental arch and projecting keystone. Inner half of doorway, also with abutment,
has complete round-headed arch. (Compare east engine house of Cusvey Mine qv).
Timber floor bearing pads over.
Detached chimney to south at higher level, (separate item).
Part of the Consols Mine which was Cornwall's most productive mine in the early C19.
From 1823 to 1825 the Consolidated Mines produced 12½% of the total copper of Great
Britain, and 15-25% of the Cornish total. Extract from History of Gwennap by C.C.
Listing NGR: SW7455242092
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