Open questions: East Ayrshire

Where sources disagree, MineArchive keeps both accounts rather than picking one; where a fact could not be settled, the record says so. 19 such claims on 16 records. All regions.

Annandale Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Annandale' (catalogue S1336, Major, dated 1919); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Auldhouseburn Colliery

• The pit was about 25 fathoms deep and worked stoop and room in a seam of about seven feet, made up of a three-foot cannel coal and a four-foot ordinary coal separated by stone. A shaft depth of 32 fathoms is recorded in the 1873 fatality of Charles Clark, and the 1910 List of Mines names the seams as Nine Feet and Seven Feet. (uncertain)

Ballochmyle Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Ballochmyle' (catalogue 3885, Ell And Main, dated 1898); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Benbain Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Benbain' (catalogue 7951, Sloanston, High, Splint And Low, dated 1924); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Caprington Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Caprington' (catalogue S1500, Splint, Turf And Wee, dated 1915); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Dalmellington Iron Works

• A 2011 report describes the surviving 1847 engine house and brickworks kilns as 'complete but out of use', with an undercroft beneath the engine house — investigated by removing part of its cement floor — found to extend at least 2.3 metres down and to contain cast-iron girders and cover plates from the original beam-engine blast system. (uncertain)

Garrallan Colliery

• Garrallan Colliery was first sunk in 1907 by the Carriden Coal Company. (uncertain)
• Garrallan closed in 1927, reopened, and closed for good in 1960. (uncertain)

Gasswater Mine

• The presence of barytes along the Gass Water was known from at least the 1870s, but it was not developed until 1917 by the Hedworth Barium Co. Ltd, who carried out opencast operations and stoping from a single adit until 1921. Other sources give the opening as 1919. (disputed)
• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Gasswater' (catalogue 18344, 0800 To 4000, dated 2002); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Gauchalland Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Gauchalland' (catalogue 8557, Main, dated 1922); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Gilmilnscroft Colliery

• The museum dates the same fireman's death to 16 May 1901. (disputed)

Glenbuck Colliery

• Grasshill, the last working colliery, employed around 150 of the village's roughly 200-strong workforce; Wikipedia gives its closure as 1931, while The Lost Villages and the Mining Remediation Authority's own abandonment record both give 1933. (disputed)

Greenhill Colliery

• Greenhill, at Littlemill, opened in 1936. (disputed)

Knockterra Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Knockterra' (catalogue 6187, Ell, dated 1914); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Littlemill Colliery

• Coal working at Littlemill is dated from 1860. (disputed)
• Littlemill Colliery opened in 1905. (disputed)

Portland Colliery

• The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Portland' (catalogue S4214, Main, dated 1940); the catalogue gives no location and the plan's details do not clearly tie it to this working, so it may belong to another of the same name. (uncertain)

Sorn Mine

• The Sorn drift mine was dug not far from Sorn Castle in 1947 and closed in 1983. (disputed)