There Are Hundreds Of Skeletons In This Lake. I Think I Know Why.

TL;DR

Lake Roopkund holds 300–800 skeletons from three distinct groups across 1,000 years, likely killed by extreme weather on a recurring Himalayan pilgrimage route.

Key Points

• 1.Lake Roopkund is a remote Himalayan lake at 16,500 feet containing 300–800 human skeletons. Discovered publicly in 1950, the site includes rings, leather shoes, iron spearheads, and flesh-preserved remains; the nearest village is a 5-day walk away.
• 2.Early theories—Japanese soldiers, General Zorawar Singh's army, a graveyard, epidemic, or ritual sacrifice—were all ruled out. No weapons, military equipment, evidence of settlement, or bacterial pathogens were found to support any of these explanations.
• 3.A 2019 Nature Communications paper revealed three genetically distinct groups from three separate events ~1,000 years apart. Of 38 tested samples, 23 were South Asian (7th–10th century CE), 14 were West Eurasian (17th–20th century CE), and one was East Asian.
• 4.The West Eurasian group's DNA and dietary isotopes matched people from the Eastern Mediterranean, specifically Crete and Greece. Their C3-only isotope ratios align with a Mediterranean diet, and researchers narrowed their origin to an island location under Ottoman rule—with no known records explaining their presence.
• 5.The Nanda Devi Raj Jat Yatra pilgrimage, a 280 km trek occurring every 12 years past the lake, is the strongest explanation for the South Asian remains. Legend holds that a king's disrespect of the goddess Nanda Devi caused her to destroy pilgrims with violent weather; musical instruments found among bones support this theory.
• 6.The video's central theory is that a dangerously sharp ridge 200 meters directly above the lake, combined with extreme weather, caused multiple fatal fall events over centuries. Skull fractures on many skeletons could indicate giant hail or fatal falls, and rockfalls may have shifted bodies into the lake over time.