Question: The Dennys River resides in a county that borders which Canadian province? 
Sentence (from "Geography of Ontario"): The longest border is with the Canadian province of Manitoba to the west for approximately 1,025 km along longitude 95°50′W to latitude 53°N then a line to Hudson Bay, then the province of Quebec to the east, mostly along longitude 79°30′W (for about 430 km) and the Ottawa River from Lake Timiskaming (for about 620 km).
Relevant evidence: No