My 1974 O.S. map (that's what you get from buying maps from charity shops!) shows 5 barrows in the vicinity of Brockwood Park. The latest E.H. map now sadly only shows one barrow but has nothing to say about it.
The area where the barrow is shown is covered with trees and I am not sure I could see it. There is one obvious small 'mound' with a tree growing on top of it but this could just be a mound created by the tree's roots?