A newly formed island appeared briefly on Williston Lake in northern British Columbia, only to vanish after drifting about 30 kilometres northwest of its last known location, according to B.C. Hydro. The emergence occurred in the Williston Lake reservoir, roughly 130 kilometres northwest of the W.A.C. Bennett Dam, and was observed via satellite data dating July 21 and August 15, 2026.
B.C. Hydro describes the feature as a “mini forest” that covered an area larger than a Canadian football field. The agency notes that the landmass appeared on satellite imagery but later disappeared from the observed area, prompting questions about its transient nature and the conditions within the reservoir.
Officials emphasized that the island’s appearance and subsequent disappearance were detected through satellite monitoring, with comparisons between images taken at different dates confirming the change in location. No additional details were provided about the island’s composition, origin, or current status beyond the observed drift and the size description.
The incident draws attention to the dynamic conditions in the Williston Lake reservoir, where water levels and flow can influence the presence and movement of surface features. B.C. Hydro has not released further information on potential impacts to navigation, shoreline use, or ecosystem effects stemming from the transient landform.
