Foreigners view Rashemen as a mysterious, magical land of harsh winters ruled by masked witches and populated by berserkers. Far away from the southern climates and the warming oceans, it is a barren waste of frozen plains and snow-covered mountains where a person can freeze to death overnight even in the middle of summer. Such talk is exaggeration, but it is based in truth. Much of Faerûn owes its safety and security to Rashemen, for this small nation has held its own against the armies and collected magic of Thay time and again, sparing Thay's other neighbors from the attentions of the Red Wizards.

Magic has sculpted Rashemen's geography as much as wind and weather. Caught between the warring nations of Narfell and Raumathar long ago, Rashemen is a place of ancient wizardry and powerful spirits (called telthors) tied to the features of the land. Spirits guard the forests, mountains, and waterways against defilers - in some places, every stone and sapling has its own guardian. The local folk respect and take care to not offend the spirits, which are said to punish those who are callous toward them and bear grudges against communities for years.

In addition to its native spirits, Rashemen features many old sites of battle between the dead warring nations, and from time to time dormant spells are awakened, rocking the land with earthquakes, freakish storms, and strange monsters. Fortunately, most of these battlefields are in the northern, less populated reaches of the country. The icy lakes and rivers that form Rashemen's western border are enough to deter casual aggressors, and the fury of its native sons and daughters drives off all but the most determined attackers. The people of Rashemen love their home despite its dangers and prefer to keep it untarnished by the footprints of ignorant visitors.

Rashemen's southern border continues east from Lake Mulsantir along the Gorge of Gaurosto the Sunrise Mountains. Evil humanoids and natural predators make life dangerous for travelers and prospectors here. The border runs north past the ruins of Citadel Rashemar, which is inhabited by fell creatures and ruled by a powerful hag sorcerer, then north and northeast along the edge of the Endless Waste until it reaches the Icerim Mountains. Frost giants, frost worms, taers, and white dragons lurk in the Icerims, but these creatures dislike the relative warmth of the flatlands and are rarely seen there. The southern edge of the Icerims forms the country's northern border to the Falls of Erech, which flow downstream to join Lake Ashane.

Most interesting features of Rashemen are confined to its southern parts. The eastern side of Lake Ashane cradles the Ashenwood, a wild forest inhabited by hungry monsters. East of the Ashenwood are the Running Rocks, a leg of the Sunrise Mountains reputed to have mystical powers and connections to the Underdark. The Urlingwood to the north is controlled by the Witches and forbidden to all others under penalty of death. In the middle of the southern flatlands is Lake Tirulag, fed by rivers originating in the forests and inhabited by an "ice dragon."