I take bear spray and a bear canister. Never encountered a grizzly, but plenty of black bears. I used to climb in BC, Canada but was always in a large group. We wore bear bells. When we were in BC last year, several trails were restricted because of grizzly activity- in that case you were required to have a minimum of 4 adults, and children not allowed.

If you solo in any kind of bear country you have to make noise. In general bears do not like being startled. They need to know you are coming. I "click" my trekking poles regularly and if I see bear sign, I talk to the bears or carry on a fake two-person conversation using two different voices.

I do not camp near bear sign. If I see fresh tracks or poop, I continue at least a mile.

Another good measure is to not cook meals where you tent. Cook dinner and then move on at least a mile.