<p>Registrations for publications to be displayed at one or more of&nbsp;the five Interstate Welcome Centers - Chamberlain, Spearfish, Valley Springs, Vermillion and Wilmot - are accepted Monday, January 9, through Friday, April 21. <strong>Publications MUST be registered</strong>.&nbsp;<a href="https://sdvisit.com/training-hospitality/interstate-welcome-centers#pub… information</a>.</p>