Route planning advice - TT 6 month trip

I have traveled all over the West, deserts, mountains, national parks, etc. Never once saw a rattle snake. Most Rvers have dogs with them. Some folks travel with 3 or 4 dogs. Never met anyone who had a dog bitten. But not to say it can't happen. Just very rare unless you let your dog roam off leash. Most parks don't allow that. Coyotes and mountain lions are a threat too. We have had neighbors here in Florida that let their dogs run free and some have been bit. Get to the vet right away. A relatively young and healthy dog will usually survive if treated promptly. Your actual risk is very very low.