Welcome to Great Rivers Habitat Alliance

Great Rivers Habitat Alliance (GRHA) was founded in 2000 in order to directly combat the growing consumption of the 100-year Confluence Flood Plain through commercial development. Primarily comprised of St. Charles County flood plain land owners, GRHA tackles the policies permitting wholesale flood plain development and encourages thoughtful alternatives.

Duck Club Maps For Sale

If you are interested in purchasing one of the beautiful 2017 duck club maps, they are now available for sale. Both the 6th printing of the St. Charles map and the inaugural Lincoln and Pike counties map are available. Each map is $400, which is tax deductible as allowed by law. Map sales will support the work of Great Rivers Habitat Alliance, Ducks Unlimited, and Delta Waterfowl. Maps are sold unframed, but we are happy to recommend a frame shop at your request.

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You may pay online here, but you still need to call our office at 314-918-1007 to provide additional information, including which charities you wish to direct your giving and how you wish to receive delivery of the map. You are also free to mail a check for the map or to pay over the phone.

This will make a wonderful Christmas gift!
Please be sure to purchase a duck club map for your hunt club, office, man cave, or trophy room today!



Since 2000, GRHA has made progress increasing the awareness of policy makers and the public about flood plain developments and levee construction efforts.

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Become a Member

GRHA relies on support from those interested in preserving Missouri’s Big River Floodplains and Wetlands. Consider supporting GRHA by becoming a member.



Subscribe to the GRHA e-newsletter to receive the latest news and announcements about GRHA’s ongoing efforts as well as private invitations to future GRHA events.