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Welcome to your Ottawa River.

The Ottawa River flows through Allen and Hardin Counties, past farms, neighborhoods and city streets. It is a living, vital river that shapes our landscape and our lives. The Ottawa River Coalition was formed to preserve and protect the river; and dozens of businesses, industries, governments, organizations and individuals work together toward that common goal. The Ottawa River is healthier now than it has been in decades because people are making positive impacts. A healthy river supports a healthy community. This is your river. What are you doing to protect it?


Don’t miss the Ottawa River Cleanup on April 22.

The annual Ottawa River Cleanup takes place April 22. Meet at the Central Services Building at 9:00am to be assigned a specific section of the river to clean. We’ll provide gloves and trash bags. Kids are welcome but must be accompanied by an adult. So get your family, organization, church or class together and join us for a fun morning cleaning up our beautiful Ottawa River!

Governor Mike DeWine has announced an initiative to ensure safe and clean water for all Ohioans. It is a comprehensive, data-driven approach to improving water quality over the long term. H2Ohio focuses specifically on reducing phosphorus, creating wetlands, addressing failing septic systems, and preventing lead contamination. Learn more on the H2Ohio website and download ‚Äč10 Best Management Practices flyer.


Beth Seibert Scholarship

If you are pursuing a career related to environmental stewardship, apply now for the Beth Seibert Scholarship.

Apply Now

Water Quality


My River


Map of Watershed Features




Let us know how you’d like to be
involved with the Ottawa River

We’d love to have you volunteer with us. There are plenty of opportunities to get involved. Please let us know what your interests are, and feel free to ask us any questions you may have about who we are and what we do.