The Pit -Viper that bit our husky

This is the hognosed pit viper that bit our husky. These snakes are generally small and sluggish. They do not attack without being provoked, in case you were feeling bad for our dog! We have had very dry days lately and the snake came out to our gravel driveway to soak up some sun. It is lucky that Smokey found him first because the snake was scarily close to our house. We wear boots when we walk through the grass but when I am just hanging laundry I am only wearing sandals. We got Smoke to the vet on time for the anti-venom but not before his nose blew us to 3 times normal size. We were lucky to notice immediately after it happened or we could have lost him.