Browse monitoring locations within Union County, Illinois
- 11S 1W-29.7a1 - USGS-373140089144201
- 11S 1W-30.1b1 - USGS-373146089145601
- 12S 1E-20.7h - USGS-372800089075501
- 12S 2W-27.7c1 - USGS-372630089192001
- 12S 2W-32.7d1 - USGS-372540089213401
- 12S 2W-32.7d2 - USGS-372545089212901
- 12S 2W-32.7e1 - USGS-372548089213001
- 12S2W-32a - USGS-372549089213001
- 13S 3W- 6.1a1 - USGS-372519089222701
- 13S 3W-12.7a1 - USGS-372516089222401
- 13S 3W-24.3h1 - USGS-372237089231201
- Green Creek Tributary Near Jonesboro, IL - USGS-05599640
Important
This list uses USGS Water Data OGC APIs. View the Swagger documentation for this API