100-meter resolution elevation model overlain with 1:2,000,000-scale hydrographic features, Eastern Great Plains - med
By Center of Excellence for Geospatial Information Science (CEGIS)
2016 (approx.)

Detailed Description
The image shows Eastern Great Plains and Central Interior Appalachian landscape features spanning much of Missouri, Illinois, and Indiana as depicted with a 100-meter resolution elevation model overlain with 1:2,000,000-scale hydrographic features.
Sources/Usage
Public Domain.