Tectonic geomorphology and late Quaternary deformation on the Ragged Mountain fault, Yakutat microplate, south coastal Alaska

•Ragged Mountain Fault was previously (1976) interpreted as a high slip-rate normal fault.•Lidar geomorphology indicates that primary fault is a poorly-expressed thrust fault.•Paleoseismic trenches reveal two Holocene surface ruptures and several late Pleistocene ones.•The southern range front has collapsed in mega-landslides and ridge-crest sackungen.