Krypton and Napfor sit within a landscape defined by the winding North Fork of the Kentucky River, where the local infrastructure follows the deep bends and narrow valleys of Perry County. The region's transport history is marked by several engineering landmarks, including the Campbell Tunnel, Yerkes Tunnel, and the Typo Tunnel, which facilitate passage through the high ridges. These tunnels, along with the Chavies Bridge, illustrate the difficulty of movement before modern road improvements like the Coalfields Industrial Dr were established.
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1891 · Hazard
USGS Topo · 1:125,000
1913 · Buckhorn
USGS Topo · 1:62,500
1914 · Troublesome
USGS Topo · 1:62,500
1916 · Cornettsville
USGS Topo · 1:62,500
1916 · Hyden
USGS Topo · 1:48,000
1919 · Hyden
USGS Topo · 1:62,500
1953 · Buckhorn
USGS Topo · 1:24,000
1953 · Hyden West
USGS Topo · 1:24,000
1954 · Noble
USGS Topo · 1:24,000
1954 · Krypton
USGS Topo · 1:24,000