How the Hell Did an Island Suddenly Appear, Then Vanish?
A floating mass of trees and vegetation in British Columbia’s Williston Lake attracted international attention after it was filmed this summer by boaters—and then seemed to disappear.
An island that appeared and vanished on Williston Lake in British Columbia sparked international curiosity last month. The floating mass of trees and vegetation, about 230 feet by 460 feet, was first seen by local resident Rocky Avery, who shared a viral video with friends. Bob Gammer, a spokesperson for BC Hydro, confirmed the island's authenticity through satellite images taken on July 21.
However, it disappeared on August 5th, leading to a search that finally led to its rediscovery 20 miles northwest of its previous location. This phenomenon isn't new, though it hasn't been reported on Williston Lake before. Floating islands form over many years as natural rafts of driftwood allow plants and trees to grow above the water.
These platforms can detach due to stormy weather or flooded shores, eventually floating away. The recent formation was likely caused by high water levels from the W.A.C. Bennett Dam, which filled the reservoir for the first time in 14 years after heavy snowpack and precipitation in June and July. The island's size and flimsy structure make it hazardous for humans, but it poses no threat to the dam or vessels.
BC Hydro is monitoring its journey around the lake through satellite images and eyewitness reports. The tree-covered island may disintegrate over time or become reattached to the shoreline, potentially freezing into the ice and thawing again in spring. While its news value may fade within days, the island itself will remain, and BC Hydro will continue to monitor it.
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