This year Region 21 is hosting the AIS 2017 Convention rather than having a spring meeting. There are spring meetings in neighboring Regions to give you an additional iris fix. You can find all the spring meetings we are aware of on the Iris Encyclopedia here.
The Region 9 Spring Fling Meeting is Saturday April 8th in Pekin, Illinois. Their website has the preliminary details. Contact them to learn more.
The Region 18 Spring Meeting is May 19-20 in Columbia, Missouri. Here are the details and a registration form (PDF) for you.
Enjoy these events and hope to see you in Des Moines for the Convention!