MRRC is a private, non-profit organization supported by its members and by cooperating agencies , institutions , and corporations .
Membership is open to all interested parties.
MRRC members are scientists, river managers, teachers, students, and individuals from private business and the general public who want to encourage both pure and applied research on the water and land resources of the Mississippi River and its watershed. A Proceedings of the annual meeting containing abstracts of presentations are published each year. The annual meeting usually occurs in La Crosse, Wisconsin, on Thursday and Friday of the third or fourth week in April. A Call for Papers is issued in November and registration materials and a meeting program are distributed in March. Questions can be addressed to any one of the four officers on the Board .