1890-1940 Campbell & Co.
External Links
Publications (2)
- (1920); BGS - Mineral Resources of GB (c1920s) Vol VI - Refactory Materials. Ganister, Silica Sand, Dolomite; 258 pages
- BGS - Mine Plans (large, zoomable) - Plan Shewing The Abandoned Workings In The Bonnybridge, Slatey & Lodestone Fireclay Seams From Roughcastle Pit.; 1 pages