ANTIETAM NATIONAL BATTLEFIELD: Sharpsburg, Md.; www.nps.gov/anti or 301-432-5124

GETTYSBURG NATIONAL MILITARY PARK: Gettysburg, Pa.; www.nps.gov/gett or 717-334-1124

HARPERS FERRY NATIONAL HISTORICAL PARK: Harpers Ferry, W.Va.; www.nps.gov/hafe or 304-535-6029

ANTIETAM BATTLEFIELD GUIDES: www.antietambattlefieldguides.com or 301-432-4329 or 866-461-5180. Rates vary depending on group size and length; a two-hour tour for six people or fewer is $50.

ASSOCIATION OF LICENSED BATTLEFIELD GUIDES: www.gettysburgtourguides.org or 717-337-1709. Two-hour tours for up to six people, $45.

CIVIL WAR TOURS: www.civilwartours.org or 860-485-3603. Destinations for Civil War Tours have included Antietam and South Mountain in Maryland, Gettysburg in Pennsylvania and Bull Run, Chancellorsville, Fredericksburg and Spotsylvania in Virginia. Two-day weekend tours including bus or van, lunch and lectures are $295, but do not include lodging.

ALL-IN-ONE TOURS: www.civilwartours.net or 888-681-5333. Custom group tours available to Civil War sites. Tours offered in the past include trips as long as seven days to explore Civil War history in Kansas, Virginia and elsewhere. Prices vary, but most bus tours range from $70-$110 daily and overnights from $120-$150 per day.