Wow. There's very little to see and the views are restricted by the trees, but it's a nice spot. Intervisible with also-Neolithic-cum-Iron Age Crickley Hill.
Last time I was there the valley between the two filled with cloud.
Weird isn't it, morphology suggests iron age. I guess the only clue would be how small the "rampart" are. Love it was in concurrent use with crickley hill.