A geocacher in central Alberta had an encounter with a grizzly. He was able to extricate himself from the situation and drive himself to the nearest hamlet.

http://www.cbc.ca/news/canada/calgary/water-valley-bear-attack-1.4188285

I visited the website of the probable cache he was looking for - just off a remote road on the edge of the foothill terrain. Another cache in the immediate vicinity strongly promotes the idea of going in groups with the right protection (bear spray in this case) because the area is so remote.