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Mysterious Island Appears and Disappears in British Columbia Reservoir

  • A forested floating island about the size of two football fields appeared on July 21 in the Williston Reservoir, northern British Columbia, as confirmed by satellite images and B.C. Hydro officials.
  • B.C. Hydro attributed the island's emergence to record-high water levels lifting vegetation and driftwood, which was then pushed into open water by winds.
  • Local resident Rocky Avery described the sighting as unique in 40 years and shared images that gained widespread attention.
  • By August 5, the island had disappeared from satellite tracking, with officials speculating it may have drifted back to shore or to a sheltered area rather than sinking, and monitoring continued in case it reappeared.
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  • 38% of the sources lean Left, 37% of the sources lean Right
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Mashable broke the news in New York, United States on Monday, August 31, 2026.
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