It is boomerang shaped, perhaps 50cm long, by 12cm high. I've included some sheep on the sheltered lower slopes, amidst the heather... mostly Gripping Beast Manx Langtons.
...whilst an old ram keeps watch (below).
There's a WIP shot of the mountain here. We used it in a game last night for the first time; it is impassable terrain, and occupies 3 of the terrain boxes I use in my rules.