Spirit Lake Survey Area
![Image shows a map of the central United States with the survey area shown as a blue polygon](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Spirit%20Lake%20Survey%20Area.jpg?itok=GG9c3glc)
Detailed Description
The Spirit Lake tectonic zone survey will cover a broad swath of land, including parts of Iowa, Minnesota, Nebraska and South Dakota.
Sources/Usage
Public Domain.
The Spirit Lake tectonic zone survey will cover a broad swath of land, including parts of Iowa, Minnesota, Nebraska and South Dakota.
Public Domain.