Bolton Lake is a lake in the Mackenzie River drainage basin in northwestern Saskatchewan, Canada. It is about 2.7 kilometres (1.7 mi) long and 1.3 kilometres (0.8 mi) wide, and lies at an elevation of 487 metres (1,598 ft). The primary outflow is an unnamed creek to Meanwell Lake, then an unnamed creek into the Mirror River, and then via Clearwater River, Athabasca River, Slave River, and Mackenzie River into the Arctic Ocean.