I've spent quite a few days in the mountains with friends and by myself. I've seen scat on a bunch of occasion as well as digs, tree scratches, and scat...
The only bear i've seen while fishing was at about 75 yards. He/she stood up, had a few sniffs at the air, saw me, and a simply walked back into the bush. I'm scared of em, but simple precautions like many that have been listed above, will keep ya safe.
Not our area, but some good information. Have a look about:http://www.env.gov.yk.ca/pdf/howyoucanstaysafe.pdf Not our area, but some good information.