Yeah, there are a lot of ridiculous guns that have been made and still are. What's truly ridiculous, though, is that enough people will buy them that they can even be made at all. I could mention some prime examples, but it might be stepping on some toes.....
I actually do hike into and camp in Black Bear country and have had numerous encounters, several quite close. At least three of those were face to face on mountain trails within 20 yards, one was less than 15 yards and I drew down on him but didn't have to shoot. If it's hunting season, I'm carrying a rifle. Otherwise, I'm packing into a mountain lake with a fishing rod. Unless I'm hunting, my code is to not discharge a firearm in the wilderness unless absolutely needed. The other rule, is to have one just in case it's needed.
So, yes, I definitely have a, "mountain gun", capable for large game or whatever. Mine is a Ruger stainless Vaquero in 45 Colt, carried in a homemade crossdraw holster and stoked with 255 grain handcast bullets loaded to 1075 fps. I keep it loaded with six and carry a limited amount of spare ammo, as you can't devote too much weight to something you will not be using on a several day hiking trip deep in the wilderness. I shoot this gun a lot; just not in the Wilderness.
Where? High Cascades, usually, and Siskiyou Mountains occasionally.