Call Number (LC) Title Results
NR9/200.2/L82/1961 Location regulations for lode and placer mining claims, tunnel sites, and mill sites / 1
NR9/200.2/M66/1960/INTERNET The minerals of Colorado and area locations 1
NR9/200.26/2 The minerals of Colorado and area locations / 1
NR9/200.3/1 Recommendations for safety appliances in mining / 1
NR9/200.3/1-5 Precious metal production (1898-1902) 1
NR9/200.3/1/INTERNET Recommendations for safety appliances in mining / 1
NR9/200.3/2-5 Precious metal production (1898-1902) 1
NR9/200.3/2/INTERNET Precious metal production for year 1898. 1
NR9/200.3/3/INTERNET Mining law relative to Bureau of Mines, precious metal production. 1
NR9/200.3/6 Regulations relative to the construction, equipment and operation of metalliferous mines, mills and metallurgical plants, recommendations and mineral production for 1905. 1
NR9/200.3/6/INTERNET Regulations relative to the construction, equipment and operation of metalliferous mines, mills and metallurgical plants, recommendations and mineral production for 1905. 1
NR9/200.3/7 Mining laws, federal and state : mine rules and regulations appended. 1
NR9/200.3/8 The Oil shales of northwestern Colorado. 1
NR9/200.3/8/INTERNET The oil shales of northwestern Colorado. 1
NR9/200.3/9 Mine safety standards. 1
NR9/200.3/9/INTERNET Mine safety standards. 1
NR9/200.3/11 Mining laws of Colorado with mine rules and regulations appended. 1
NR9/200.3/12 Mining laws of Colorado with mine rules and regulations appended. 1
NR9/200.3/13 Mining laws of Colorado with mine rules and regulations appended. 1
NR9/200.3/14 Mining laws of Colorado with mine rules and regulations appended. 1