Dogs are great companions and good domestic protection but I've read that dogs can actually attract mountain lions and other natural predators. Seems most folks carry a sidearm. In one incident I read about, a Montana hunter dropped his rifle and ran, and while being attacked, resorted to his sidearm at close range, which dispatched the lion. Bear spray might be a good solution as well. With grizzlies, I've read that bear spray is more effective for survival than shooting a charging bear. In the Gold Rush, how many of those panners were attacked by mountain lions? I'd think a lot of them would have been, but I don't read much about that. I spent a summer backpacking in Colorado, in really remote locations, sleeping on the ground under a tarp, and never saw sign of a mountain lion. Given where I was, I know they had to have seen me.