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How a Phantom Island Appeared, Vanished, Then Reappeared in Different Location
BC Hydro said the tree-covered mass likely formed from decades of logs and debris, and it has urged people to stay off the unstable island.
On Wednesday, BC Hydro officials announced the floating island was found resting against the shoreline on the Ospika Arm of Williston Reservoir, approximately 20 miles from its last known location.
The reservoir is at its highest level in 14 years due to heavy snowpack and rain, potentially lifting the island from shore; Geologist John Joseph Clague noted accumulated logs and debris form such vegetated mats.
Measuring approximately 460 feet long and 230 feet wide, the island spans roughly 105,500 square feet; BC Hydro Community Relations Manager Bob Gammer verified the landmass through satellite imagery and observations.
Gammer warns people to stay off the island, describing it as a "delicate, thin layer of logs" that is naturally unstable and unsafe to climb onto or land boats on.
"Finding the island has answered one question, but it has raised several others," Gammer said; the discovery resembles other floating bogs like Wisconsin's Forty Acre Bog documented in recent years.
In the lake, which reached its maximum level for the first time in 14 years, a mysterious island covered with trees appeared. The island, which was captured in satellite images, later disappeared.