Any climb on which most climbing events will spend more than one working day. "Massive wall type" normally refers to hauling the essential gear (food stuff, h2o, sleeping bags) inside of a haul bag (instead of carrying the gear on a person's person) and increasing the haul bag among pitches. http://sewing-classes-boulder75184.blogrelation.com/2557816/colorado-sewing-classes-an-overview