1999, Monroe, WA. I was attacked by a pet wolf that leaped over a fenced enclosure. The wolf's name was Tacu (Greek for "Quick"), and the owners believed he was harmless. I survived the attack, as the only damage was a shredded ear, but it could have been a lot worse. A short time later the owners realized Tacu was a poor choice in pets, and they made the decision put him down.
Some points to consider:
1. Do not feed wolves. If you're planning to camp in a certain area, and you learn that other campers feed the wolves in that location, then it's a good idea to go somewhere else. Food-conditioned wolves have attacked campers.
2. Never run from a wolf, as it triggers pursuit and wolves can run up to 35 mph.
3. Leave your dog at home.
4. Be aware of wolves that are habituated.
5. Wolves are not dogs, and they have wilderness genetics that cannot be domesticated.