I start back towards camp, wanting to move everything closer to the caribou, who seem to prefer the ridge tops and upper end of the valley.
I'm cruising back to my camp, mostly on rocky, alpine, tundra on the ridge line.

There's one swampy part where the scrub grows up a seep to the ridge and the tundra deepens. When I reach that section, a dark shape appears 175 yards away.

I stop real quick, and unholster my bear spray, rifle cradled, round in the chamber. Binos up, it looks like a young bear, maybe even a black bear, the muted light through the clouds makes it look dark, but not black. I shift upwind, trying to put my scent on his nose, while I have some room to maneuver and defend myself if necessary, hoping it will move off. The wind keeps changing as I circle farther around the ridge top, never blowing directly towards it. The bear moves down his side of the ridge away from me, still unaware. It disappears for a moment over the slope of the ridge. I hold my position for 5 or 10 minutes, I have a good view in all directions. Just as I start to think the bear is gone, it comes back in view, straight lining over the ridge crest. It will pass less than 100 yards in front of me.
When it hits my walking trail on the ridgeline from earlier, it stops, looks right at me, then starts hurrying into the valley to my right.
I have video of this, and in the video I'm talking about how sure I am that this is a black bear. Straight face profile, big ears, minimal hump, but I dont really know, still.