Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open.
Mark your calendar for when the booking window opens (typically 5-6 months ahead). Also set alerts - cancellations do happen.
Reservations at Antietam National Battlefield typically fill up when the booking window opens. Your best approach: 1) Know when the window opens (usually 5-6 months ahead), 2) Set up alerts with Campsite Tonight to catch cancellations - they happen more often than you'd think.
Antietam National Battlefield is located in Maryland, near Sharpsburg. Check each campground page for specific directions and GPS coordinates.
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