For a sense of what TISH was about, and one of the most important movements in Cascadia poetry history, see Kevin Killian’s review of When TISH Happens, the new Frank Davie memoir of the magazine: http://www.poetryfoundation.org/harriet/2014/04/when-tish-happens/
& for only $25 for the whole weekend, get your Gold Pass for the 2nd Cascadia Poetry Festival, where George Bowering and Daphne Marlatt (of that TISH group) read, give workshops, appear on panels and hang out at what may be the largest bioregional gathering of poets in Cascadia history: www.CascadiaPoetryFestival.org