Crystal Lake is a lake straddling the boundary between the rural municipalities of Keys No. 303 and Buchanan No. 304 in eastern Saskatchewan, Canada. At 1.6 kilometres wide and 3.2 kilometres long, it is a small lake fed by natural underground springs. It is surrounded by the residential resort community of Crystal Lake. The lake is approximate…Crystal Lake is a lake straddling the boundary between the rural municipalities of Keys No. 303 and Buchanan No. 304 in eastern Saskatchewan, Canada. At 1.6 kilometres wide and 3.2 kilometres long, it is a small lake fed by natural underground springs. It is surrounded by the residential resort community of Crystal Lake. The lake is approximately 24 kilometres north of Canora and 24 kilometres south-east of Preeceville.