Summit Lake is a lake in the Magpie River system in Unorganized North Part of Algoma District, Ontario, Canada in the Lake Superior drainage basin. It is about 0.6 kilometres (0.4 mi) long and 0.2 kilometres (0.1 mi) wide, lies at an elevation of 376 metres (1,234 ft). There are no significant inflows, and the primary outflow is an unnamed creek to Bog Lake, which eventually flows via Josephine Creek and the Magpie River into Lake Superior. The lake is about 5 kilometres (3 mi) northwest of the community of Hawk Junction and 16 kilometres (10 mi) northeast of Wawa.