The Hibagon: Japan's Elusive Mini-Bigfoot of Mount Hiba

Dear Shadow Tribe, 

 

Japan. Deep in the misty Chūgoku Mountains of Hiroshima Prefecture, where ancient forests cloak the slopes of Mount Hiba, whispers persist of a creature that defies easy explanation.  Standing roughly five to six feet tall, covered in dark bristly fur, with glaring, almost intelligent eyes and a foul stench that lingers like a warning, the Hibagon (ヒバゴン), sometimes spelled Hinagon (ヒナゴン), has haunted local imaginations since the early 1970s. Often dubbed Japan's answer to Bigfoot or the Yeti, this stocky, gorilla-like hominid sparked a national frenzy half a century ago, and occasional flickers of sightings suggest it may not have vanished entirely. Unlike the legendary Sasquatch of North American lore, the Hibagon feels more compact, more primate, more plausible, like a real life unknown animal. Yet the questions remain: Was it a fleeting media-fueled illusion, a misidentified bear or macaque, or something genuinely undiscovered hiding in one of the world's most densely populated island nations?The Spark: 1970 and the First WaveThe modern legend ignited in July 1970 near Shōbara City (then part of what is now Saijō area), close to Mount Hiba's rugged terrain. Early reports trickled in from farmers, hikers, and drivers who claimed to glimpse a strange, upright figure crossing roads or lurking at forest edges. One of the earliest documented encounters came on July 20, 1970, when Yoshitaka Marusaki, driving a light truck near the Rokunohara Dam, watched what he reported as an up-right calf-sized creature dart across his path. Just days earlier, agricultural salesman Junji Miyasaki reported something similar. By late 1970, sightings multiplied. Students spotting it near schools, locals finding odd footprints, and a pervasive rotten odor in the air. The name "Hibagon" itself emerged from local media. it blended "Hiba" (from Mount Hiba) and a playful suffix echoing "Bigfoot." Newspapers like Chugoku Shimbun amplified the stories, and soon the creature became a sensation. Police opened a Hibagon investigation office in 1974 to handle reports, collecting plaster casts of alleged tracks (some 20–25 cm long) and even blurry photos, including one infamous 1974 image of a dark figure peeking from behind a persimmon tree. At its peak in 1974 and 1975, dozens of witnesses came forward. Descriptions converged on key traits: bipedal, 1.5–1.8 meters tall, stocky build (estimated 80–90 kg), black or dark reddish-brown fur with occasional white patches on chest, hands, or feet; a large, inverted-triangle head; prominent snub nose; deep, piercing "intelligent-looking" eyes; and that unmistakable foul smell, likened to manure or a septic tank. Remarkably, the Hibagon never attacked. It fled swiftly, often dropping to all fours like a gorilla, evading pursuit with uncanny agility. No aggression, no livestock kills, just elusiveness.The Fade and the RevivalAfter the mid-1970s, the frenzy cooled. Sightings dropped sharply after 1975, the police office closed, and the Hibagon slipped into regional folklore. Sporadic reports surfaced in the 1980s, but the creature seemed to retreat deeper into obscurity. Then, something stirred. Starting in 2024, fresh claims emerged around Shōbara City. It was quickly dubbed the "Reiwa Hibagon." An elderly resident in August 2024 opened his door to see a black figure in a nearby field; when called out (thinking it a monkey), it vaulted a low electric fence and vanished. At least five sightings trickled in through mid-2025, including one of a man-sized "large monkey" associating with wild macaques. Blurry photos from hikers circulated online in early 2025, showing a tall, hairy shape moving through trees. The photo was grainy, debatable, but enough to reignite debate. As of 2026, enthusiasts still trek Mount Hiba, marking the 50+ year anniversary with expeditions. Trail cams, drones, and smartphones blanket the area more than ever, yet no definitive proof has surfaced.Theories: From Misidentification to Mystery PrimateSkeptics point to the obvious suspects: Japanese macaques. Native, adaptable, occasionally bold, they can appear larger and more bipedal in poor light or stress.
Asiatic black bears. They can stand upright briefly, their dark fur and size matching many reports (especially distorted footprints). 
Fakes and Hoaxes. The 1970s timing aligns perfectly with global Bigfoot hype post-Patterson-Gimlin film; media contagion likely fueled a classic wave of copy-cats and hoaxes that self-extinguished. Fringe ideas persist: radiation-mutated survivors from Hiroshima's atomic legacy (a popular but unsubstantiated rumor); escaped exotic animals; or even a relict hominid population, perhaps a diminutive offshoot of Gigantopithecus or Homo erectus, clinging to survival in isolated pockets. The "intelligent eyes" detail recurs often, but as many note, primate eyes naturally look similar to humans. No reports describe tool use, vocal language, or complex behavior, just evasion and silence.A Lingering EnigmaThe Hibagon fascinates because it's Japan's cryptid story in miniature: brief, intense, localized, and stubbornly unresolved. No body, no clear DNA, no high-res video in an era of constant surveillance. Yet the legend endures, with souvenirs in local shops, podcast episodes, books by researchers like Kyle Brink (Amazon link), and the quiet hope among believers that one day, a trail cam will capture the truth. Is the Hibagon a cultural echo of global monster mania, a parade of mistaken animals, or a genuine undiscovered primate that has mastered the art of avoidance? In the dense forests of Mount Hiba, the answer, if there is one, remains hidden. What do you think? Is this modern folklore? Or do you suspect the Hibagon is more than myth? Share your thoughts below.

 

Between Shadows and Light,

Cade Shadowlight 

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