Similarly if a new survey makes a summit non-compliant then it will be removed.
We removed W5N/PA-008 a few months ago at the request of the association manager, KT5X. It began far above 150P, but mining reduced it to 69P and now even lower. Eventually, it will be zero P.
Reversing this process and applying the same logic opens up an interesting possibility. If we haul up rocks and dirt to a summit to increase its height we could get a SOTA summit of a summit that had borderline too little prominence. You could dig from the saddle that defines prominence for double gain,
IIRC there is a G/NP summit that only became valid because of a railway cutting. We have a few summits that are actually man made mine tips, the reasoning was that once they are stable and vegetated they are not going anywhere so why not?
That was Arnside Knott G/LD-058 Brian. The railway cutting was always there throughout the existence of the Marilyns concept, but wasn’t initially spotted when the maps were interrogated to determine the P150s. Interestingly Abberley Hill lost its Marilyn (P150) status for the opposite reason - when a disused railway cutting was filled in! That though was pre SOTA, so Abberley Hill was never a SOTA summit.
Hello there. Today I got round to watching the video. Many thanks for that. The weather co-operated perfectly with your joint activation. Congratulations on the first activation of this summit.