Back in probably the early 90s I vividly remember seeing a snowy mountain layout at the East Grinstead Model
Railway exhibition which was held at Sackville School in the town which is in West Sussex. I’m pretty sure it was N-scale and made primarily from polystyrene. I remember the chap letting me (a young teenager) have a go at controlling it. It was multi-layer with tunnels throughout the mountain scene which I think I remember was taller than it was wide/deep.
I wondered if anyone has any memories or pictures of this layout? I’m afraid I don’t have any more details than that!