Back in the day, they used to mount a giant illuminated star up there at Christmas time. You can see the mounting post for it in that photo. It is said that they stopped putting the star up in the 70's because of the energy crisis.
The Matterhorn is secretly a volcano and that is the top of the lava tube.
"You can cut me off from the civilized world. You can incarcerate me with two moronic cellmates. You can torture me with your thrice daily swill, but you cannot break the spirit of a Winchester. My voice shall be heard from this wilderness and I shall be delivered from this fetid and festering sewer."