当利口 / Danglikou (late Han)
当利口 / Danglikou (late Han) enters the wiki through Hanji 983 as a defensive point held by 张英 for 刘繇. It appears beside 横江, where 樊能 and 于糜 are stationed.
The place matters because it shows Liu Yao turning an uncertain appointment into a guarded line against 袁术’s camp. In the source’s sequence, control of crossings and mouths such as Hengjiang and Danglikou is the practical shape of the contest before Sun Ce’s later Jiangdong expansion.