The Aurora Trout is a coldwater species found in clear, cool lakes. This species was native to a few remote, high-elevation lakes in the Temagami district of Ontario. It is now stocked in other lakes in northern Ontario. Natural reproduction by introduced Aurora Trout has been limited in two non-native lakes.

The Aurora Trout is a unique variant of the Brook Trout, distinguished by its colouration. It looks similar to Brook Trout, yet adult fish lack the yellow marks throughout the dorsal region and exhibit few to no red spots with blue halos. The dorsal surface is typically olive-green to dark brown with iridescent steel-blue and silver sides and silvery-white underparts that are often tinged with pink. On the anal, pelvic and pectoral fins there is a white leading edge followed by a dark stripe. The rest of the fins are reddish. The caudal fin is nearly straight or with a shallow indentation. The largest known Aurora Trout was 3500 g and 600 mm long. Aurora Trout have a lifespan of approximately 8 years.