Gold Placers and Their Geologic Environment in Northweste...
Singewald, Quenten D.![Gold Placers and Their Geologic Environment in Northwestern Park County, Colorado](https://support.digitalhusky.com/media/annotations/sorted/113/11361576/CHSBZCOP0311361576.jpg)
Gold Placers and Their Geologic Environment in Northwestern Park County, Colorado was originally published in 1950 as USGS bulletin 955-D. Publication covers placers and where they derived from in Park county Colorado, a rich placer area once mined by river dredges. Now back in print by miningbooks.com