Uiscridh is a very large cavern found in Minaltum, which is a Province of the Holy Empire of Acolytius. The cavern forms an irregular circle around its perimeter, stretching a few miles in diameter at its widest point. The cavern ceiling slopes upward, following the shape of the mountains above it. Stalagmites and stalactites cover the ceiling and floor, being as large as castle spires. Some form mighty columns, which contribute to the cavern's stability. An expansive network of corridors, both natural and manmade, stretch out from Uiscridh in countless directions.
The cavern's enormous size made it an ideal place for the Dwarves to establish the city of Ga-Hiomriach, which is now the capital of the Province. The rock formations of Uiscridh have created multiple ledges and natural bridges that allowed for buildings and roads to be constructed, with homes and businesses now stretching along every surface and filling all of the space in between.