Unified Interior Regions

Region 3: Great Lakes

Great Lakes Restoration Initiative

Great Lakes Restoration Initiative

For more information on the Great Lakes and work being done, check out the Great Lakes Restoration Initiative website here! 


USGS Science Centers in the Great Lakes Region

For more information on what each center is doing in the Great Lakes, please follow the links below! 

Great Lakes Science Center

Ohio-Kentucky-Indiana Water Science Center

Upper Midwest Water Science Center

Upper Midwest Environmental Sciences Center

National Wildlife Health Center

Regions L2 Landing Page Tabs

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Image: Lake Michigan Sand Waves

Lake Michigan Sand Waves

Calm Lake Michigan morning while sampling dead and dying fish for viral hemorrhagic septicemia virus (VHSV). This virus has recently emerged in the Great Lakes and caused severe epidemics in many fish species.

View of bridge and river from webcam

Salt Creek at Wood Dale, IL (05531175)


This site is located at Irving Park Road in Wood Dale, Illinois. The time is reported in Central Standard Time and the bridge-pier elevations are referenced to NGVD 1929.

This site is operated in cooperation with the DuPage County, Illinois, Stormwater Management Division

Image: Minnesota River at Jordan

Minnesota River at Jordan

Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.

June 1, 2021

Analysis of HgT in Sediments, Soils and Plants Brooks-Rand MERX

Analysis of Total Mercury in Sediments, Soils, and Plants by Cold Vapor Atomic Fluorescence Detection with the Brooks-Rand “MERX” Automated Mercury Analytical System.

The following standard operating procedure (SOP) is used by the U.S. Geological Survey’s Mercury Research Laboratory (MRL) to determine total mercury (HgT) concentrations in sediments, soils, and