Great Rivers Habitat Alliance

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Great Rivers Habitat Alliance

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A group of citizens, concerned about the current flood plain development trends within the St. Charles County.

Great Rivers Habitat Alliance (GRHA) was founded in 2000 in order to protect the 100 year Confluence floodplain for the benefit of wildlife, historic waterfowling, agriculture, clean water and people. Louis Metropolitan region, established Great Rivers Habitat Alliance in June 2000. GRHA addresses issues affecting wetland habitat and promotes sensible use of flood plains in the confluence region of the Mississippi, Missouri, and Illinois Rivers. Great Rivers Habitat Alliance supports preservation of the flood plains of the Mississippi and Missouri Rivers. The organization’s primary focus is on the Confluence Flood Plain in St. The organization seeks to save our natural flood plain and rural agricultural heritage. GRHA strives in influencing public officials to make changes in their policies and legislation that is affecting the regional flood plain development. Since its establishment, GRHA has made contacts with regional influential politicians and officials and begun an awareness campaign to inform the general public about flood plain developments and new levee construction efforts that typically closely follow new flood plain developments. These awareness campaigns are the initial tools intended to raise attention about the importance of saving flood plains as natural water storage areas, instead of converting it into building sites for new, larger, strip malls and shopping centers. In order to effectively conduct and fund awareness campaigns and other efforts, the IRS approved GRHA as a charitable 501c3 organization status in Fall 2000. GRHA has also formed partnerships with other environmental organizations such as Missouri Coalition for the Environment, Missouri Department of Natural Resources, and Ducks Unlimited, etc. to effectively work on flood plain protection efforts. One of GRHA’s future goals is to acquire one or more conservation easements within the regional flood plain during 2001. The ultimate preservation goal is to protect 60,000 to 100,000 acres of land through easement acquisition and land purchases through federal, state, and private funding sources. The organization will continue making contacts with influential people addressing issues of concern.

10/22/2026

Thank you for an unforgettable night at the 2026 DU/GRHA Partnership Gala! 🦆

This year’s gala was a record-breaking success, and we are so grateful to everyone who helped make it happen. To our attendees, bidders, raffle ticket buyers, and everyone who raised a paddle in support of the Jay & Carolyn Henges Wetland Park and Education Center: your generosity is helping protect the Confluence for generations to come.

To our volunteers, thank you for the time and hard work that brought this evening to life. We truly couldn’t do it without you.

Missed the video we shared before the paddle raise, or want to watch it again? Find it here: https://youtu.be/p3pvv22tt4Y

A special thank you to our sponsors:

Title Sponsor
- FSI

Platinum Sponsors
- The Fort Family
- The Sansone Family
- Renewal by Andersen, The Birner Group
- Flynn Drilling Company

Gold Sponsors
- Bank of Washington
- BlindBook
- Green Leaf Procurement
- Henges Interiors
- Missouri Conservation Heritage Foundation

Auction Sponsor
- Trophy Properties and Auction

We’re grateful for this incredible community and can’t wait to see you next year! Stay up to date on GRHA events and news at grha.org.

10/09/2026

🚨The Silent Auction is NOW OPEN!🚨

The DU/GRHA Annual Partnership Gala silent auction is officially live! Browse the items, place your bids, and find something you love. You do not have to be present at the gala to participate!

Attending the gala? You can also preview our live auction items ahead of the big night.

New items are still being added, so be sure to check back often as we get closer to October 15!

Click the link below to explore the auction and start bidding!

🔗https://DUGRHAGala2026.auctria.events

Every bid supports DU and GRHA’s mission to protect and conserve the Confluence. Thank you for your support!

10/03/2026

We are so grateful to be part of the DuckFest community! Be sure to stop by for day 2! 🦆

Great Rivers Habitat Alliance and Emmaus Homes are the FEATURED CHARITIES at Duckfest 2026

10/01/2026

Duckfest starts tomorrow! Stop by the GRHA booth and be sure to check out all the amazing vendors and activities! Will we see you there? 🦆

09/23/2026

🍂 Yesterday was the first day of fall!

Cooler mornings, changing leaves, and migrating birds are a beautiful reminder of the seasonal rhythms of the Confluence.

Here’s to fall in the Confluence! 🍁🌾

09/21/2026

GRHA is proud to partner with MDC and St. Charles County Parks to offer free mentored duck hunts at the Henges Center this fall! Click the link below to learn more about the program and how to register 🔗

Interested in hunting? This fall, Missouri offers mentored duck hunts for youth and new adult hunters. Learn safely and gain hands-on experience with skilled mentors. Interested?

09/11/2026

Today, we remember the lives lost on September 11, 2001, and honor the courage of the first responders, service members, and everyday Americans who stood strong in the face of tragedy.
We will never forget. 🇺🇸

09/10/2026

323 signatures and counting. 177 to go!

The Mississippi–Missouri Confluence Conservation Coalition is working toward 500 signatures on the Declaration for Responsible Routing and Stewardship of the Mississippi–Missouri Confluence.

The Coalition is asking that new transmission lines use existing corridors rather than creating new corridors through the Confluence and the conservation work generations have invested in protecting.

Every signature goes directly to Ameren’s project team and is logged in the official project record.

Help us get to 500:
https://confluence79.vercel.app/e

Already signed? Thank you! Please share the Declaration with your network and help us reach our goal.

09/05/2026

Address

3850 SSR-B
St. Louis, MO
63301

Telephone

+13149181007

Website

https://grha.org/

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