Treatise on Armament Technology, Volume 216 The OCR reads "316," but the Wubizhi traditionally consists of 240 volumes; this section on coastal geography corresponds to Volume 216.

Surveys and Mapping: Coastal Defense, Part 10

Twelve

Coastal Cities, Watchtowers, Terrace-Platforms, and Forts

Gaizhou Garrison | Yizhou Garrison Gaizhou and Yizhou were strategic military administrative hubs in the Liaodong region, responsible for overseeing the security of the coast and the inland corridors.

Guangning Front Garrison Positioned at the "front" or southern end of the Guangning defense sector, this garrison was crucial for protecting the access point to the Shanhai Pass.

One Pass
Shanhai The famous Shanhai Pass (Shanhaiguan), where the Great Wall meets the Bohai Sea. It was considered the most critical defensive gate protecting the road to the Imperial capital, Beijing.

Nine Watchtowers Watchtowers (Dun) served as the primary signaling system, using smoke by day and fire by night to relay warnings of enemy movement.
Juehua Island Now known as Juehua Island or Chrysanthemum Island, it was a major logistics and supply base for the Ming military.
Longguan Island
Lianhai Mountain
Qinyang Island

Mountains and Islands In Ming maritime records, the term "Mountain" (Shan) often referred to prominent islands or coastal peaks used for navigation and observation.
Taohua Island Literally "Peach Blossom Island."
Wangtian Island Literally "Sky-Gazing Island."
Huanxi Ridge Literally "Rejoicing Ridge."
Dawang Village
Qingchun

Twelve Forts Forts (Bao) were smaller, fortified settlements designed to house troops and provide refuge for local farming populations during raids.
Guangji
Shulin Literally "Forest."
Haishan Literally "Sea-Mountain."
Yongfeng Literally "Ever-Abundant."
Haibin Literally "Coastal."
Xing