Bears from Cades Cove Tennessee, and GSNP (Work in progress)
The laws protecting park wildlife are contained in the Code of Federal Regulations. It states that “Willfully approaching within 50 yards (150 feet), or any distance that disturbs or displaces bear or elk is prohibited." In addition, feeding, touching, teasing, frightening, or intentionally disturbing wildlife is prohibited.
As a rule of thumb, if you approach an animal so closely that it changes its behavior, you have approached too closely. Instead use binoculars, spotting scopes and cameras with telephoto lenses to enjoy wildlife. Watch for any modification in an animal's behavior that indicates that you have approached too closely. Move away from the animal until you reach a distance at which the animal feels comfortable once again and resumes whatever activity it was engaged in before you approached.