A little late on this but I just joined and read this thread. My father climbed St Helens in early March 1980. When his rope team reached the summit they ran into a giant crevasse that shouldnt have been there. So they stayed roped up the entire time while on top. Little did they know that exactly four days later on Komo a helicopter would be filming that crack with steam venting from it. I was to young but he said you could still see there footprints around the area. I dont know when they shut the mtn down to climbing but it couldnt have been much longer. I believe the first official notice I've seen of the steam etc was for March 27th.. Wish I was old enough back then to have been on that climb.. I do have to say my father and that team had to been one of the last ones to ever climb it though..... RIP St Helens.......