MapUnion army's march on Gettysburg from Frederick, Md. Regional view shows paths taken by different segments of the Union army on a march from Frederick, Md., to Gettysburg, Pa., as well as the location of the Confederate army units in the vicinity. The Union troops were under the commands of Reynolds, Howard, Sickles, Slocum, Hancock, Sykes and Gregg.
- Contributor: Sneden, Robert Knox
- Date: 1863-06-30