The Iltkazar Range was a long chain of five distinct mountain ranges that ran vertically from the Vilhon Reach in the north down to the the Shining Sea in the south and roughly divided west Faerûn from interior Faerûn. The range included, from north to south, the Giant's Run Mountains, the Snowflake Mountains, the Kuldin Peaks, the Omlarandin Mountains, and the Alimir Mountains.