Gargantua area, campsite facing the Devil's Chair, Lake Superior Provincial Park, Algoma District, Ontario, Canada.
Very big for C. bartonii so I thought it might be robustus but it only has one row of tubercles on the inner palm. Habitat was small stream flowing through culvert
Caught and released
Small olive-coloured crayfish, orange-tipped claws. Found on a riverside path after flooding.
in minnow trap in 30 cm deep water in flowing Layton River
in minnow trap in 30 cm deep water in flowing Layton River