A really impressive barrow indeed. While not as long as Knap Barrow next door, it is much higher and quite overwhelms close to. Very well preserved with a remarkably smooth outline like a large whale breaking the surface. Interesting that its orientation is almost at right-angles to its companion. Mostly clear of scrub growth although it is encroaching from the north. Disabled: As Knap although both would be accessible by a 4x4. Open farm gate.
The fantastic ‘Hampshire Treasures’ resource gives the following info – “Grans Barrow - Long barrow - SU 090 198 - east of Toyd Down. 63 m long and 17 m wide. No trace of side ditches. Scheduled Ancient Monument no.37”