The excellent ‘Hampshire Treasures’ resource gives the following information – “Norsebury Ring. Immediately north of Stoke Charity. Univailate earthwork. Damaged by plough. O.S.A. No. SU44 SE19. Ref: 1. A.S.P. ALG 91. (St. Joseph). Ref: 2. History of Micheldever, 1924, (Milner). Ref: 3. Archaeology of Wessex, 1948 (Grinsell), p.180.” It is a scheduled ancient monument, No.131.
Just to the East (around SU497391) lies the site of the ‘Weston Colley Group’ of 13 round barrows. The ‘Hampshire Treasures’ resource says they have been extensively ploughed out and are now crop marks only.