While this preserve is technically members only, it is also a national landmark, as the site of a Revolutionary War battle. Luckily, anyone may visit with a pass from many local libraries. The preserve is maintained by Brandywine Conservancy, so if you obtain the free visitor's pass for Brandywine Museum and Conservancy at the library, you may access any of their preserves and/or the museum (and the trails on the museum grounds).
Birmingham Hill Preserve is largely a wide open field, once the battlefield. It's hallowed ground, and it felt hallowed to me. There are paths mowed in the field, nice and wide, to keep you from the longer tick grass. Birmingham Friends (Quaker) Meeting is just across the street (with their cemetery right there next to the parking lot of the preserve), so it is another historic site nearby.
Didactics explain info about the battle, and the positions of the armies. I am not a huge history buff, so while this was interesting to me, I didn't have time to read them while chasing and holding the interest of a toddler, but I imagine that if you have detailed background knowledge about the battle, it would come alive and be a great stop on a tour of Washington's path.
They offer dog waste stations and have posted rules about dogs needing to be leashed in the preserve, however their website states that dogs are not allowed at this preserve out of respect for the fallen during the Battle of Brandywine, Sept 11, 1777. I felt okay about taking my leashed dogs around the perimeter walk, but I felt a little uncomfortable walking them through the battlefield itself. read more