I’ve visited The Mills several times and it’s very concerning that its future as an astronomical observatory is in doubt. I will add my support to the survey and petition.
Another favourite in Scotland was the City Observatory on Calton Hill, Edinburgh. Sadly, it fell int0o disrepair and the City of Edinburgh converted it into an Arty Farty Centre
https://www.collective-edinburgh.art/visit/site-history
https://www.astronomyedinburgh.org/about-us/a-guide-to-edinburghs-popular-observatory/
Alex.