The 307th Memorial is so small and unkempt you could walk right past it. I did, and I was looking for it! It does not have a Parks Department sign like most memorials in the park. It is located east, or in back of, the "Bandshell". It's easiest access is from the Central Park entrance at 5th Avenue and 69th street, keep walking straight ahead (west). If you get to the Bandshell you have gone too far (map at bottom of page).
It has one large bronze plaque mounted on a granite boulder, engraving on the other side of the boulder, one nice polished stone monument (not to the 307th), and a bunch of small bronze plaques dedicated to each company of the 307th. These small plaques are mounted on small concrete posts originally placed in front of newly planted trees. Some trees are now missing, some of the concrete posts are twisted in the ground, some of the bronze plaques are missing, others are damaged, and a few are newer than the rest.