Black or Grizzly?

[hobbes]

I need a bear expert's identification skills.

Claw marks are easily visible, but you'll have to zoom to make out toes and pads.

It's a hard track to make out, but I was thinking black because the claws don't seem long enough (marks too close to ends of toes) but line through toes seems similar to grizzly. A Montana native friend of mine who's a lot more bear experience than my own thought it was an awfully big track for a black.
His first impression was Grizzly, but admitted that it may well be a black.

Photo was taken yesterday in an area that is definitely possible for grizzly, but not high prob

I'm wearing a size 11.5 Kennetrek.

 

[Htm84]

I’m no expert but I’d say black bear. Looks to rounded for a brown bear to me.

 

[GLB]

Hard to tell but I think it’s a large black bear.

 

[COHNTR]

I'd say black bear also.

 

[Quicksilver]

I have pictures of black bear tracks similar in size to that one from last year. I would vote a tank of a black bear as well.