Subjects: mining (sorted by popularity)
- Mineral industries -- Australia -- Fiction 121 downloads
- Mining camps -- Fiction 120 downloads
- Minerals -- United States 119 downloads
- United States. Bureau of Mines -- Juvenile fiction 119 downloads
- Coal mines and mining -- Great Britain -- Juvenile fiction 118 downloads
- Coal miners -- England -- Juvenile fiction 118 downloads
- Mines and mineral resources -- California, Southern 114 downloads
- Mineralogy -- Illinois 113 downloads
- Opal mines and mining -- Australia -- Fiction 113 downloads
- Gold mines and mining -- Drama 109 downloads
- Mines and mineral resources -- Illinois 109 downloads
- Mine pumps -- Early works to 1800 108 downloads
- Gold mines and mining -- Yukon -- Fiction 107 downloads
- Minerals -- Catalogs and collections 106 downloads
- Gold mines and mining -- Colorado -- Pikes Peak Region -- History -- 19th century 105 downloads
- Mines and mineral resources -- Brazil 102 downloads
- Copper mines and mining -- Juvenile fiction 100 downloads
- Submarine mines -- Handbooks, manuals, etc. 98 downloads
- Mineral industries -- England -- History -- To 1500 97 downloads
- Coal mines and mining -- Pennsylvania -- Fiction 94 downloads
- Silver mines and mining -- Juvenile fiction 93 downloads
- Tin mines and mining -- England -- Juvenile fiction 92 downloads
- Gold mines and mining -- Australia -- Ballarat (Vic.) -- Fiction 91 downloads
- Diamond mines and mining -- South Africa -- Fiction 89 downloads
- Mineral waters 89 downloads