Weather and hydrology

Hays Cummins' weather station at Boyd Hall
ODNR Division of Water Welcome Page
Great and Little Miami River Basins NAWQA -- Indiana and Ohio
Miami Conservancy District
Surf Your Watershed

Environmental organizations

The Nature Conservancy (Ohio Chapter)
Miami Group, Sierra Club
Hamilton to New Baltimore Groundwater Consortium
Ohio Environmental Council

Government agencies

US Army Corps of Engineers - Information Network
Ohio River Valley Water Sanitation Commission (ORSANCO)
OKI (Ohio-Kentucky-Indiana Regional Council of Governments)
Ohio Agricultural Statistics Service (USDA)
Ohio Dept of Transportation (ODOT)
Ohio Dept of Agriculture (ODA)
The Ohio Department of Natural Resources
Ohio Geological Survey
Ohio Environmental Protection Agency (OEPA)
Indiana Agricultural Statistics Service (USDA)
Indiana Department of Environmental Management
Indiana Dept of Natural Resources

Other

Geology of Cincinnati
Miami University | Oxford, Ohio
Miami University Department of Geography