Mountain Plains Library Association
http://www.mpla.us/
Twelve state association. Meets annually in joint conferences with member states on a rotational basis.
http://mpla.us/services/conference.html
Upcoming 2015 conference: 23-24 September 2015, Cheyenne WY
http://www.wyla.org/conference-schedule
MPLA Region Continuing Education Opportunities
http://mpla.us/services/continuing-education.html