Part way in we had been seeing signs of a large one. We stopped at a small feeder stream for a break, and Mr Big must have been bedded real close as all of a sudden we started hearing a bear kindof growling/hooting at us, something of a deep, guttural, rattling moan that started with an h. Never saw him, sounded like he was within 30 yards at first, as he moved off continuing to growl we paralleled him, hoping to get a glimpse or pic but it was too thick and no openings. Season opened the next day so we couldn't have shot.
Went on and on growling for an honest 2 minutes or so. Never got a pic, in fact I never took a pic of any of the bears we encountered as we always had our hands full as they were all close encounters, as I'll explain.