On July 4, 1863, the second-largest Civil War battle in Pennsylvania occurred where Lions Club Park exists today. The battle of Monterey happened during a raging thunderstorm; 10,000 soldiers fought and 1,500 died. Control of Monterey Pass was the goal of the fight, and 12-year-old Hetty Zeilinger knew the area because she lived there. The First Michigan Cavalry happened upon her during the thunderstorm, and she told them about the Confederates blocking the way ahead. She offered to lead the troops, and that's how a little girl became a Union guide, leading 4,000 horsemen through Monterey Pass.