In case you missed it, the answer is in the Q&A Section, but here it is repeated, straight from The Final Authority on the Subject at
hand. :
"Beyond the 150 foot Ice Wall is anyone's guess.
How far it extends, how it terminates, and what exists beyond it are questions which no present human experiences can reply.
All we know at present is that snow and hail, howling winds and indescribable hurricanes prevail, and that in every direction human ingress is barred by unsealed escarpments of perpetual ice, extending farther than eye or telescope can penetrate and becoming lost in gloom and darkness.
Some hold that this tundra of ice and snow stretches forever eternally."
-Samuel Birley Rowbotham