The Theed's south ridge existed as a ridge in close proximity to Theed, which served as the main city and capital of the tranquil planet known as Naboo. Situated in the vicinity was Widow's Valley, and during the Invasion of Naboo in 32 BBY, the Naboo airbase was based at this ridge.
This location, the south ridge of Theed, is featured in the Star Wars: Episode I: Battle for Naboo video game released in 2001.