Rivergate

Rivergate was built on a wide river. Cut across it like a series of walls descending from tall cliffs, like steps meant for a giant.^[3]

It was a complex structure that served as both a dam and a lock. Its highest wall held back the powerful current, while each step below it was separated by a vast chamber with towering gates that could be filled or drained with the help of ancient enchantments. The ancient system of locks allowed ships traveling to or from the Stormsea to descend from or scale the cliffs, ensuring they never left the river. At the same time, nothing could swim further upstream without destroying the Citadel, and the assailant would have to crawl out of the water and travel by land with the locks destroyed.^[3]

Rivergate's highest point and lowest point were nearly a kilometer apart. The descending walls were tall and thick, built of monolithic stone, and had battlements with siege weapons, some enchanted with ancient sorcery and some built by the forgemasters of Clan Valor.^[3]