OS 50k map symbols & rights of access

I activated it (a while back, see A Good Idea? (G/SE-001 Walbury Hill)) from beside the public byway; fine for SOTA, but no good for WAB Trig point chasers. When I visited there were enough farm animals in the field that activating the trig point would have been interesting both in terms of livestock curiosity and livestock “fallout”, even if it had been obviously accessible.