Blachford Lake, is a remote lake in Northern Canada, near Yellowknife. The lake is 17 km (10.6 mi) and sits on precambrian

Precambrian

The Precambrian is the name which describes the large span of time in Earth's history before the current Phanerozoic Eon, and is a Supereon divided into several eons of the geologic time scale...

 rock. The lake is located at 62 09.97'N, 112 40.96' W and is to the north of the start eastern arm of the Great Slave Lake

Great Slave Lake

Great Slave Lake is the second-largest lake in the Northwest Territories of Canada , the deepest lake in North America at , and the ninth-largest lake in the world. It is long and wide. It covers an area of in the southern part of the territory. Its given volume ranges from to and up to ...

.

Royal Visit

The lake was visited by The Duke and Duchess of Cambridge on their 2011 tour of Canada

2011 royal tour of Canada

The 2011 royal tour of Canada by Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, took place between June 30 and July 8, 2011. The tour saw the newlywed couple visit all of Canada's regions: Western Canada, Central Canada, Atlantic Canada, and Northern Canada...

; during the visit they were taken to an uninhabited island where they were prepared supper by a local cook.