Ched Nasad, or the City of Shimmering Webs, used to lie in a great V-shaped cavern under the High Gap in the northern Graypeak Mountains. The grotto is nearly a mile high and a half mile wide at its largest. While the cavern roof is relatively flat, the grotto’s walls are so steeply pitched as to make it impossible for creatures other than spiders or lizards to stand upright. The drow of Ched Nasad had built their city atop slender filaments of magically calcified webbing that endlessly danced and flickered with the radiance of faerie fire. Over one hundred major layers of webwork once stretched across the cavern, and hundreds of other near-vertical webs provide access from one level to the next. Individual dwellings, which resembled great hollow cocoons, were constructed both above and below the layers of ‘Lolth’ induced webbing. Along the cavern walls, endless sheets of water drained down from the mountains above, nurturing a veritable jungle of molds, lichen, and fungi tended by the city Houses’ slaves. The narrow cavern floor was reserved for small herds of deep rothé tended by goblin shepherds. It is located in the Upper Northdark.