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Grand Teton National Park & John D. Rockefeller, Jr. Memorial ParkwayBlack Bear with mountain ash berries, photo by Rebecca Wiles
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Grand Teton National Park & John D. Rockefeller, Jr. Memorial Parkway
Carry Bear Spray - Know How to Use It

Bear spray has been shown to be extremely effective in deterring bear attacks (Smith, T., et al. 2008). Bear spray is a non-toxic and non-lethal means of deterring aggressive bears. It temporarily affects the respiratory system and mucus membranes in bears.

  • Use bear spray. Personal self-defense pepper spray is not effective.
  • The canister must be immediately available, not in your pack.
  • Bear spray can be adversely affected by wind, rain, cold temperatures, and age.
  • Follow the manufacturer’s instructions, know how to use the spray, and be aware of its limitations, including the expiration date.
  • If you use the spray to stop a bear, leave the area immediately.
  • It is not a repellant! Do not spray it on people, tents, or backpacks.
  • Under no circumstances should bear spray create a false sense of security or serve as a substitute for standard safety precautions in bear country.

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Never approach a bear.
Never feed a bear.
Stay 300 feet (1 football field) from bears at all times.

Close-up of trumpeter swan head  

Did You Know?
Did you know that Grand Teton National Park is home to the largest bird in North America? The Trumpeter Swan weighs 20-30 pounds and lives in the valley year-round in quiet open water.

Last Updated: July 13, 2009 at 12:31 EST