Question: Poker Joe, was a warrior and subchief of the Nez Percé tribe of Native Americans who played a critical role during the flight of the Nez Percé during the Nez Percé War in which year, he was the chosen trail boss and guide of the Nez Percé people following the Battle of the Big Hole?
Sentence (from "Poker Joe"): Poker Joe was familiar with Montana and the routes through the Rocky Mountains to reach the Great Plains and guided the Nez Percé in their flight.
Relevant evidence: No