Showing 1-1 of 1 Books
![](https://littlebeaverhistorical.org/wp-content/uploads/2022/02/COVER_Drilling-for-Placer-Gold-150x150.jpg)
Drilling for Placer Gold
c. 1920 book published by Keystone Driller Company of Beaver Falls, Pennsylvania. Subjects: Gold mines and mining, Prospecting, Hydraulic mining Return...
Online Document