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https://www.census.gov/library/publications/1913/dec/vol-11-mining.html 1910 Census: Volume 11. Mines and Quarries, 1909 Oct 8, 2021 - Statistics by U.S., territories, and states with chapters on coal, iron ore, petroleum and natural gas. Summaries of all minerals in the U.S. and states. mines and quarries1910 censusvolume 111909 https://www.hse.gov.uk/pubns/manqindx.htm Mines and Quarries - HSE Index of publications and free leaflets to download from the Health and Safety Executive relating to safety and health issues in mines and quarries mines and quarrieshse https://www.data.gov.uk/dataset/dde8e9f1-2264-43cd-b524-05fd895ad3e9/map-based-index-geoindex-active-mines-and-quarries1 Map based index (GeoIndex) Active Mines and Quarries - data.gov.uk mines and quarriesdata govmapbasedindex https://www.legislation.gov.uk/ukpga/1969/10/contents Mines And Quarries (Tips) Act 1969 An Act to make further provision in relation to tips associated with mines and quarries; to prevent disused tips constituting a danger to members of the... mines and quarriestipsact1969