Brilliant scenes: army engineers in the Overland CampaignStalemated at almost every turn, Lieutenant General Grant attempted to sidestep General Lee's right flank as the forces moved south until the two armies came to rest and entrenched at Cold Harbor, Virginia. Grant changed his strategy thereafter by marching across the Chickahominy River, crossing the James River unopposed, and attempting to seize the Confederate transportation hub at Petersburg, Virginia, on the Appomattox River.
McConnell, Donald J., and Gustav J. Person. "Brilliant scenes: army engineers in the Overland Campaign." Engineer: The Professional Bulletin for Army Engineers, Jan.-Apr. 2012, p. 57+. General OneFile, https://link.gale.com/apps/doc/A299887452/GPS?u=maine&sid=GPS&xid=da90326e.