Mountain lions are predators.
They seek out the low hanging fruit when it comes to prey.
Your horse will see it in the event there is one around, get very alert, which will tip you off to look where the horse is looking.
Any obnoxious noisemaker will spook them away.
I hunt them in the winter when their fur is prime, and i trap bobcat, coyote, and fox.
Theyre quite solitary animals, and theyre more afraid of you than you are of them.
They avoid confrontation at all costs too.
The best shot i ever had on one was 250 yards across a valley at a full run.
Needless to say, i missed.
Personally, i wouldnt worry myself about them at all.
I worry more about the 2 legged citified ******us maximus i run into while tooting around in the back country.
They seem to have zero concept of anything beyond what they can see with their eyes, and theyre really easy to locate, since they make obnoxious amounts of noise, smell awful, and leave oodles of tracks and other evidence of their existence.
I've had bullets whizz past me on more than one occasion while hunting in the scrub areas for coyote, a direct correlation to the zero concept past field of vision.
I RIDE, THEREFORE I AM
COWBOY UP OR GO CRY IN THE TRUCK