Yes, now I've seen it in action again, I believe it's a GP too.
And it is ... Thor's GP. Why? Well, because in the AVI see a X Norse Culture in the Archaic age (look at the top: one GP and there stands Archaic Age).
Now, we know Odin has the Great Hunt and Loki has something red. This leaves Thor. The connection between Thor and snow is not clear. Ull, his son, was a snow-god. But Thor??? His only weather-domain concerned thunder.
Ull was also a hunting and winter god, so he's quite a male Skadi. I'd doubt that he'd be implemented. He could have the Walking Woods GP, since the taxus-tree was dedicated to him. You never know.
Hel, Lady of Darkenss
She's the Bottomless Pit,
The never-ending struggle to release that which is now denied.
She's the keeper of all that is hidden, secluded and forbidden,
The mistress of the locked door.