Open questions: North Ayrshire
Where sources disagree, MineArchive keeps both accounts rather than picking one; where a fact could not be settled, the record says so. 3 such claims on 3 records. All regions.
Dockra Ironstone Pit
- Sunk in 1896 and closed in 1918 according to the museum; the village history says it worked until the 1921 strike. (disputed)
Doura Colliery
- The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Doura' (catalogue 5895, Firec;Ay, dated 1912); 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)
Fergushill Colliery
- The BGS mine-plans catalogue holds a Mining Remediation Authority abandonment plan titled 'Fergushill' (catalogue 7378, Wee, dated 1921); 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)