Log Cabin Prefab
Made by The Giblets of Jesus
This prefab comes fully optimized and with 2 skins, normal and snow covered. The snow atop the cabin is made up of displacements and overlays that are grouped together and placed in a separate vis-group.
The props and skybox seen in the screenshots are Moroes pine trees, this foliage pack from Garrysmod.org and the frozen skybox texture made by Komaokc.
If you do decide to use this prefab in one of your maps, I'd like to be credited as appropriate and while not required, it'd be nice to told so I could see how people have used it.