Alaska Resource Data File
![Alaska Resource Data File quadrangle map](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ar.jpg?itok=A3_NkIbK)
Detailed Description
The Alaska Resource Data File (ARDF) site provides descriptions of mines, prospects, and mineral occurrences for individual U.S. Geological Survey 1:250,000-scale quadrangles in Alaska.
Sources/Usage
Public Domain.