The skirmishing in front of Cemetery Hill was deadly, but that along the Hanover Road at Brinkerhoff's Ridge on 2 July might well have been decisive. On the east slope of Brinkerhoff's Ridge, two and a half miles east of Gettysburg, infantrymen of the Stonewall Brigade guarded the left of the Army of Northern Virginia. They sparred with a series of units of the Army of the Potomac--troops of the Twelfth and the Fifth corps and finally squadrons of Brig. Gen. David McM. Gregg's division of the Cavalry Corps.
The skirmishing began at daybreak when troops of the Stonewall Brigade exchanged shots with Hoosiers of the 27th Indiana Regiment from Ruger's brigade of the Twelfth Corps. Ruger's brigade, now under the temporary command of Col. Silas Colgrove of the 27th Indiana Regiment, had spent the night south of Wolf Hill near the Baltimore Pike. It returned to the fields near the Hanover Road early in the morning behind a screen formed by Company F of the 27th Indiana. When the Indiana soldiers reached the north slope of Wolf Hill, they found elements of the Stonewall Brigade in the woods in their front and in a stone house and its barn to their right. The Virginians attempted to seize another house and barn to Colgrove's left, but the Hoosiers beat them to it. The Rebels shot from the cover of the buildings on Colgrove's right and the woods, and the Twelfth Corps men replied from the buildings just seized and from the open fields to their right. 1
Not long after this fighting began, the Fifth Corps filed into the area by way of the Hanover Road from the east. The First and Second divisions of the corps massed briefly south of the road behind a screen of their