She said one reason black bears may be increasing around Bear Lake and northern Utah is milder winters, which help more deer survive. “It’s good,” Young said.

While Bear Lake to Nymph Lake's round-trip distance (about 1.7 miles, per AllTrails) and elevation gain (298 feet, per AllTrails) are the most of any hike in the U.S. to make the study’s top 25 ...