Could be a Jaguar. They have supposedly made it up that far. Definitely a bigger cat. Pretty unlikely to be a black mountain lion. That's like a once in a hundred year mutation for the entire population.Out by Quartz Mountain, on the north side of the lake. There are some big cats running Elk Creek and the Salt Fork of the Red River. We’ve had one that is jet black we’ve seen several times on us, he’s bigger than the one in the pic