Black Bear adolescent males travel incredible amounts of distance (as
has been suprisingly discovered when they were tagged). Hundreds of
miles is not at all impossible. Many moons ago a black bear was
tranquilize darted in my mother's back yard in Bethesda Maryland.  This
was many scores of miles from the nearest traditional haunts (the Blue
Ridge), across several interstate highways and one river (Potomac).

I remember the line a ranger in Glacier National Park had...don't bring
tuna fish or sardines. Bears can smell them for miles.