Hoeyang
Hoeyang guarded the approaches to Cheollyeong, a pass of strategic importance in the mountains of eastern Korea. It became a dohobu in Gangwon under the eight-province system in 1413. In 1457 Hoeyang was made the centre of a military district supervising six nearby county garrisons. Its magistrate therefore worked within a landscape organised for both civil administration and defence.
The pass continued to shape local institutions in the seventeenth century. A supporting commander was stationed here in 1610, and a defence commissioner was appointed when Cheollyeong was fortified in 1618. In 1695 another command was established at the pass to oversee policing and the pursuit of bandits across neighbouring districts. The repeated adjustment of these commands shows how closely Hoeyang's administrative importance was tied to control of mountain communications.