An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Distribution and abundance of silver, arsenic, bismuth, tungsten, and thorium in the nonmagnetic fraction of heavy-mineral concentrates from stream sediments, Survey Pass quadrangle, 1° x 3° quadrangle, Alaska
Distribution and abundance of silver, arsenic, bismuth, tungsten, and thorium in the nonmagnetic fraction of heavy-mineral concentrates from stream sediments, Survey Pass quadrangle, 1° x 3° quadrangle, Alaska