Bears are attracted to anything with an odor. By making loud noises and throwing objects you can often scare bears away before they get to your food. Be bold, but keep a safe distance and use good judgment. Never attempt to retrieve food from a bear. Never approach a bear or get near a cub.
Bears are active both day and night.
At night and any time you are away from camp, remove all food from your pack and store it properly. Leave your pack on the ground with flaps and pockets open. When you leave an area, clean out the storage box and take all your garbage with you. If a bear does get your food, you are responsible for cleaning up and packing out all debris, and for reporting it to the nearest ranger. However, bear damage and confrontations are still possible, even when all guidelines are followed.