When the 7th Wisconsin marched into Pennsylvania in June 1863, it had not seen any combat action in nine months. During the first day of the Battle of Gettysburg on July 1, 1863, the 7th pushed a part of James J. Archer's Confederate brigade off McPherson's Ridge, and then stubbornly defended the heights later in the day before withdrawing to Seminary Ridge. When the I Corps retreated to Cemetery Hill, the Iron Brigade and the 7th Wisconsin were sent over to nearby Culp's Hill, where they entrenched. They saw comparatively little action the rest of the battle. The regiment later served that year in the Bristoe and Mine Run Campaigns.