 On the morning of the 20th Treyhorn's pickets were captured by Geary's advance guard, prompting the Confederates to fall back towards Wheatland.As the Confederates began to fall back, Geary's main force reached Hillsborough, where he divided his force, sending Devin and the 6th New York east down the Charles Town Pike to Wheatland, where they then turned north up the Berlin Turnpike.Geary lead his force north up the Mountain Road, which ran parallel to the Berlin Pike, before turning east on the road to Morrisonville.