This photo shows the ground that was crossed by Weber's Brigade, the Union's first wave of attack on the Sunken Road. It was across this open field that Confederate Colonel John B. Gordon watched the 1st Delaware advance, in perfect military order, as if on parade. Gordon described how greatly their splender impressed him and how he almost regreted having to give the order to spoil it. As the Union line approached in march-step and with regimental band playing, the Confederates waited until the 1st Delaware was sixty feet away and opened fire. Brigadier Max Weber, along with one third of the regiment, went down.
The distant treeline on the right of this image did not exist at the time of the battle; that line marks the crest of the rise which divides the open field north of the Sunken Road from the plowed field/corn field beyond. Union troops found shelter behind this ridge (see 9:30 through 12:30) throughout the action near the Sunken Road.
Later in the day, Confederate Colonel John R. Cooke's two regiments retreated across this field from right to left, after having been driven off the Roulette farm by crossfire between reorganizing troops of the II Corps and Irwin's Brigade, which had just arrived on the field.