Obscurra Mountains

Located in central Rithul, the Obscurra Mountains are home to both dwarves and gnomes.
The gnomes traveled into the mountains from the forests of southern Rithul,
joining the dwarves who migrated into the mountains from underneath the Endless Shifting Desert.
From the desert to the North, the mountains are cloaked in an illusion making the desert appear to continue forever,
but from the South, the mountains are visible as normal.

Brudell is located in the center of the range, and the dwarves of that city created the only pass through the mountains.