45m. This is a famous route and at the time in the eighties, heralded a major advancement in ice climbing - it was regarded as one of the hardest ice routes in the alps for a number of years. It climbs the super obvious and perfectly formed pillar, 45m high and slender along it's entire length. It is now climbed regularly, almost daily when conditions are right and so is often kicked out making it a little easier. However it is still extremely sustained and steep.
Abseil from bolts at the belay.