Looking for seminars in north america.

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Hi, Im currently in Quebec Canada, and am looking for advanced climbing, SRT, rigging and felling seminars to attend and perfect my skills. They could either be through the ISA or TCIA or other. In my area, these events are rather rare and I dont mind travelling to catch some beneficial knowledge. Anybody know of such events happening in either Canada or US ? Could you post links to the web sites if possible. Thanks you !