The Jinggang Mountains stand where the boundaries of four counties meet.

井冈山位于四县之交。

《新英汉大辞典》

Guangling east, west border should be the county, southeast of Hengshan and Lingqiu, Fanshi county boundaries, the north by the six-rowed Hill and Datong, Yang Gao counties connected.

东接广灵、西毗应县，东南部的恒山与灵丘、繁峙县分界，北面由六棱山与大同、阳高两县相连。

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Because of convoluted congressional boundaries that divide towns and counties, we might not learn which presidential candidate had won particular districts for perhaps days on end.

FORBES: Fact and Comment