The Endangered Castle Grove is perhaps the most impressive stand of unprotected monumental ancient Red Cedars in Canada. The Lower Castle Grove includes the "Castle Giant",an enormous 16 foot (5 meter) diameter Western Red Cedar, that is one of the largest trees in Canada, and both the Lower and Upper Castle Grove are jam packed with perhaps the largest density of monumental red cedars in a substantial size grove in Canada.Marbled murrelets, screech owls, Queen Charlette goshawks, red legged frogs, cougars, black bears and black tailed deer, all live in the Upper Castle Grove.