Watersheds in the northwestern Sierra Nevada of California
![Map showing Watersheds in the northwestern Sierra Nevada of California showing past-producing gold mines](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/2011-07_new.png?itok=jFlIM27Q)
Detailed Description
Watersheds in the northwestern Sierra Nevada of California showing past-producing gold mines and major placer and hardrock gold mines. Source: USGS Significant Deposits Database (Long and others, 1998). From Alpers et al. (2005a).
Sources/Usage
Public Domain.