The underground stope books of Butte, Montana, are a unique and invaluable resource for understanding the history of mining in the region. This digital collection provides access to these historical documents, which contain detailed maps and information about the underground workings of the mines in Butte. The stope books offer insights into the mining techniques, geology, and economic history of the area, making them an essential resource for researchers, historians, and anyone interested in the rich mining heritage of Butte.