 On July 4 , 1862 , Lee 's men began marching towards Harrison 's Landing . He made his headquarters a few miles north of <unk> Heights , a sixty @-@ foot ( 18 m ) elevation approximately thirteen miles ( 21 km ) from Harrison 's Landing , and stayed nearby with his army for several days , searching for weaknesses in the Union line at the heights that might allow for an attack . No weakness presented itself though , and by the end of July 8 , the entire Army of Northern Virginia , save for cavalry stations and picket forces , was back near Richmond . The Peninsula Campaign was over . 
