Frederick House Lake Provincial Park is a small nature reserve about 30 kilometres northeast of Timmins. Ontario Parks lists the park at 13 hectares, established in 1985.
The official page says the park is accessible by water only and has no visitor facilities. That makes it a specialist protected-area page, not a campground, beach, or drive-up sightseeing stop.
The main reason Frederick House Lake matters is geological. Ontario Parks explains that in many lakes, especially those near ice sheets, varves form as banded layers of silt and sand deposited annually.
Those light and dark sediment bands can be counted to suggest the age of a deposit and reveal lake history in the immediate post-glacial era. The nature reserve contains the type section for the Connaught varved clays of the Barlow-Ojibwa Formation.
For long-tail content, that gives the page a focused purpose: helping readers understand water-only access, post-glacial lake sediments, varved clay deposits, and a no-facility nature reserve near Timmins.
The lack of a physical address on the official page also matters for planning. Treat Frederick House Lake as a source-verified reserve listing where water conditions, maps, and conservation sensitivity come before any activity assumptions.
Plan around official research, learning about varves and post-glacial lake deposits, understanding the Barlow-Ojibwa Formation, water-access logistics where appropriate, low-impact nature observation, and using nearby serviced parks for facilities.
Confirm water access, maps, no-facility expectations, sensitive geology guidance, lake conditions, weather, alerts, emergency planning, and park rules through the official Ontario Parks source before travelling.
Non-operating park in Ontario Parks locator.
