Pennsylvania is home to some kick ass large bears...
http://blogs.wvgazette.com/johnmccoy...-killed-in-pa/
Over the years I've seen several (one in the wild, two shot by hunters) that EASILY topped 6 feet in a standing pose, NOT a reared up paws over head pose.
Habitat and food availability ALWAYS plays a role in a critter's ultimate final body size (not just whether they are overweight or not). A critter with the genes to be very large, but which is chronically starved for adequate food, isn't going to grow out to its potential.