Glacier Engine 1 (Concept) - Giant Bomb

The Glacier 1 engine was created in 1998 by IO Interactive, and have been running most of all IO Interactive's games since. The Glacier 1 engine is by 2011 retired through the announcement and upcoming release of the newer and stronger Glacier 2 engine, in the latest franchise Hitman: Absolution.

Global Volcanism Program

Missoula Airport begins $42M second-phase expansion project

Glacier Hunting Off Greenland's Frozen Coast

Glacier Engine 1 Games - Giant Bomb

Engines of Fury Unveils Game Hideout

Difficult, but Awesome - TV Tropes

SQUARE ENIX The Official SQUARE ENIX Website - Tagged

Bob-omb, MarioWiki

Glacier Engine 1 (Concept) - Giant Bomb

9 Hidden Wonders in Eastern Colorado: Roam with dinosaurs, scale the minarets of an actual castle, witness rare birds, and revel at starry skies. - Atlas Obscura