Speck Lover--In general, any scent connected with humans will send black bears the other way. But that doesn't count in the Park because their protected status, along with interaction with humans or around humans without any harm has changed things. But let a bear smell urine (or other human scent say 50 miles away in Graham County, where hunting is deeply ingrained in the culture) and I'll assure you they will suddenly recall the fact there is urgent bruin business two counties away. Or, to put it another way, you don't have to worry about bears in your campsite when far up Big Snowbird Creek.
Jim Casada
www.jimcasadaoutdoors.com