Andy Hall of the Infamous Stringdusters is doing a three hour slide workshop in Denver with lap steel virtuoso Roosevelt Collier on Saturday, November 22 from 11:00 am to 2:00 pm at the 1Up music venue in Denver, Colorado.
Here's the Facebook link for info:
https://www.facebook.com/events/738328886236758/
Here's a sample of Roosevelt and Andy playing together:
https://www.youtube.com/watch?v=F2eXNf73VvY