My 2 cents...
A trail/camp revolver should be 1) as light as possible; 2) able to handle anything from charming snakes to quietly popping a rabbit or squirrel for the stew pot; 3) provide some level of protection against large predators on four legs or two; 4) durable enough to get wet and banged up and still go bang every time.
So, to me, that means a single/double action .38 sp/.357 mag with at least a 3" barrel for the longer sight radius in a light frame, likely just 5 shots. Adjustable sights would be nice, but I could live without them if it was reasonably on target with the fixed ones.
That new 3" adjustable-sight Ruger LCRx seems like a great choice if going for something new-fangled and a little cheaper, but I'd be tempted to save my pennies and go with nice old-fashioned S&W Model 60 Pro with the wood grips and adjustable night sights. Otherwise, I'd go with whatever lightweight, small-frame .357 I could find second hand.
PS--Oops, I just realized that the LCRx-3 is in .38 Special +P, not .357, but I could live with that, in fact, I would be happy with a .38 Special +P revolver for this use generally and even standard .38 Special if that's what I had available. For the latter, I would definitely spring for a box of Buffalo Bore hard cast wadcutter ammo or something similar to get the most penetration possible agaist wild beasties.