The wind sweeping down from the Reghed Glacier howls its wrath and sometimes carries stinging sprays of ice in its grasp. The sun never rises far above the horizon even at the height of summer—and the height of summer is fleeting. During the rest of the year. sudden storms bring driving hail or sleet that leaves everything coated in a sheath of ice, or they bring snow that piles in deep drifts.
All this cold and fury is caged into one small region. The ice cliffs of the Reghed Glacier—the source of the never-ending wind—rise up in the east like prison walls, home to white dragons and enormous remorhazes. In the south loom the snowcapped peaks of the Spine of the World, crawling with orcs, goblins, and other monsters. North and west, the Sea of Moving Ice churns bergs and floes in an endless tumult, like winter grinding its teeth in anticipation of its next freezing assault.
And yet, such is the nature of life that even in this hostile place, it manages to lift its head in defiance of the biting cold. Lichens cling to weathered rock despite the battering of the winds, providing sustenance to herds of reindeer through the winter. Fish swim in the lakes and rivers that dot the tundra.
When summer comes to the tundra, life shakes off the torpor of winter and comes forth in full flower. Grasses grow two or three feet high in the span of weeks. Birds flock to the marshes formed in the thawing soil. Reindeer calves fill out the herds that have been diminished through the winter.
Of course, no region of the Forgotten Realms is without its people. Human tribes follow the reindeer herds through their annual migrations. Other humans dare the treacherous waters of the Sea of Moving Ice in search of fish, seals, and whales to sustain them. Dwarves dig into the earth to find shelter from the biting wind, mining for iron and forging weapons and armor.
Most improbably of all, civilized folk descended from foolhardy and treasure-mad immigrants from the south manage to survive and sometimes thrive in ten small towns. The wooden buildings of these towns provide only a little shelter from the cold and wind, and no protection at all from the attacks of orcs, barbarians, or the fierce tundra yeti. Though the towns are clustered around three icy lakes teeming with knucklehead trout, resources are scarce, and competition between neighboring communities can be fierce and occasionally deadly. But for all the dangers, people still live in the region known as Ten-Towns, and new arrivals—outcasts, fugitives, wanderers, and adventurers—still come to test themselves against the harshest environment known to the world.
This is Icewind Dale.