For the benefit of future regional meeting organizers here is a zip file of announcements in Chemical & Engineering News regarding the 2013 regional meetings. These announcements include the call for papers.
In searching the C&EN web site I wasn't able to locate a call for papers for the Western regional meeting or the general announcement for the Northwestern regional meeting. Apologies if I simply missed those article on the C&EN web site.
If there is interest a collection of regional meeting program books from 2013 could also be put together. Some meeting web sites have available a complete PDF for their program book while other meeting web sites just have bits and pieces available for download.
Mr. Donivan Porterfield, President
ACS Rocky Mountain Region Board