I have added a scanned copy of Mining in Eastern and Central Washington by L.K. Hodges, published in 1897 to this website.  Hodges travelled the mining camps of Eastern Washington at the request of the Seattle Times and sent back stories that were compiled in this book.  It includes diagrams of the workings of many mines, maps of their locations and descriptions of the mines.  WARNING:  This is a large file 100+ kb.  If you have a slow Internet Connection, you may want to avoid it.  I can print and bind a copy for you for $20.