Thanks for this section, RJV, but as you say yourself it does not show any workings below the horse level.
I am wondering if there is a possibility of some drainage to the West Allen, valley?
According to the abandonment sectional plan, there are 14 rises into the vein, beyond the county boundary, and I think we saw 10.(the last ones being inaccessible due to a fall in the horse level, and there was some also in the stope above.)
All this makes me wonder if there was a lower level driven from the west allen valley. In my estate's area plan(of West Allen)it is difficult to come to any conclusion, but perhaps someone else knows?