Province 5064, Illinois Basin
Detailed Description
Outline map of Province 5064, Illinois Basin, located in Illinois, Missouri, Indiana, Kentucky and Tennessee. National Oil and Gas Assessments.
Sources/Usage
Public Domain.
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.
