The Cascade torrent salamander generally has numerous medium-sized black spots and white-gray flecking along its tan back and sides and a bright yellow belly that has fewer spots. Adults can grow to just over four inches in total length.
Cascade torrent salamanders spend their lives in and near permanent, cold, fast-flowing and clear water including headwater streams, waterfall splash zones and seeps in older coniferous forests. Adults need gravel streambeds or other gravel areas with constant and shallow water flow for foraging and cover.