Salmokji — The Valley That Swallows the Lost
A 1982 irrigation reservoir in the hills of Yesan County, whispered about among fishermen for decades, vaulted in 2022 onto national television as a place where five people vanished in series — and in 2026, with a number-one box-office horror film named after it, so besieged by night visitors that the county imposed a dusk-to-dawn curfew on the water.
Case File No. 460
FILE 01 The Legend
The Gwangsi Reservoir was built in 1982 to water farm fields, an unremarkable agricultural impoundment in the hills of South Chungcheong Province. Among the local fishing community, though, the water carried a reputation passed rod to rod: bodies that never surfaced, anglers who went out at dusk and did not come back, a valley that kept what it took. The stories had no official trace — no case numbers, no news file — until the MBC television program 'Simya Gwedamhoe' ('Late-Night Ghost Story Meeting') aired the reservoir's legends in 2022 and gave the place a national name: Salmokji, the valley of the living-dead, where five people are said to have vanished one after another. The broadcast made the reservoir a pilgrimage site for the horror-curious. Then came the film. In 2026 'Salmokji: Whispering Water' opened, was number one at the Korean box office, and converted television folklore into a national phenomenon: on spring nights a hundred cars queued into the valley, and in April the county of Yesan formally banned night visits — 6 p.m. to 6 a.m., announced on official social media, asking the public for understanding. The water now has a curfew, a film, a television canon and a folklore of disappearance — and no missing-persons file has ever confirmed a single one of the vanishings.
FILE 02 The Sightings Log
The canon is the MBC broadcast and its aftermath: the serial-vanishings narrative (five taken, one version says more), fishermen's accounts of the valley's 'bad water', dashcam and phone clips of the night-time visitor waves post-film, and the county's own notice boards. Physical sightings of anything anomalous are scarce — the legend is about absence, not apparition: cars that entered and did not leave, anglers whose rods were found standing in the dark.
FILE 03 The Skeptic’s File
No police record substantiates the serial disappearances — the five-vanishings core is an internet-era legend cluster that television adopted as true. The reservoir is real, cold, deep and steep-banked: drownings at unlit rural fishing water are tragically ordinary, and 'bodies never surface' describes any deep reservoir in the weeks before recovery. The 2026 phenomenon is a straightforward media loop: a broadcast made a rumor national, a film made it law — the curfew exists because of crowds, not because anything was ever demonstrated about the water.
BEYOND THE CASE FILE / PLAN A VISIT