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Review Finds Hiker Killed in Defensive Grizzly Attack at Glacier National Park

A July 20 Board of Review report reconstructs a surprise defensive mauling and highlights limits of countermeasures and safety guidance.

Overview

  • Investigators concluded that 33-year-old Anthony Pollio was killed after he surprised an adult male grizzly on the Mount Brown Lookout Trail on May 3, according to the Interagency Grizzly Bear Committee report.
  • The report reconstructs the encounter as brief and intense, saying Pollio tumbled about 93 feet down a steep slope, climbed roughly 18 feet back up, and was then reengaged and fatally injured by the bear.
  • Pollio fully discharged a can of bear spray during the initial contact but investigators could not determine whether the spray struck the bear or altered the outcome.
  • The bear appears to be a long‑term resident of the park with no prior conflict history, and wildlife management guidance says defensive, surprise attacks do not automatically trigger removal of the animal.
  • The July report has renewed public attention to basic bear-safety practices and prompted calls from some groups for policies to encourage or require hikers and hunters to carry readily accessible bear spray.