 By the time of its discovery, it had been submerged beneath a reservoir, Dalhousie Lake.Dalhousie Lake was created by a dam constructed across Bloody Creek by the Nova Scotia Power Corporation as part of the Bloody Creek Reservoir hydroelectric development.As a result, the collection of rock samples from crater rim and its surroundings required the use of scuba gear and visiting the site during the occasional periods when the reservoir was drained.