The Dragon of the "Valley of Woe": Dartmoor’s Forgotten Legend
- 5 days ago
- 3 min read
If you’ve ever hiked across Dartmoor, you know that the landscape feels alive with stories.
Every jagged granite tor seems to guard a secret, and every misty bog feels like the setting of a ghost story.
But while tales of the demonic Hound of the Baskervilles or the ghostly Hairy Hands get all the spotlight, one of the moor’s most fascinating legends sleeps quietly in a valley near Hexworthy: The Dragon of O Brook.
Today, the O Brook is a peaceful, bubbling tributary of the River Dart. But centuries ago, locals knew it by a much darker name: the Wo Brook. And according to the old moormen, it was a place of pure, unadulterated woe.
The Terror of the Wo Brook

Long before hikers with backpacks and map apps frequented the area, the valley was dominated by a creature of nightmares. Local folklore tells of a fierce, nameless dragon that claimed the valley as its personal hunting ground.
The beast was so terrifying that hardened tin-miners and tough Dartmoor farmers would walk miles out of their way just to avoid the area. People wouldn't even utter the dragon’s name, terrified that the mere sound of it across the wind would summon the beast from its lair.
The dragon chose a fittingly ancient home, nesting within the stone ruins of a Bronze Age settlement. Perched high on the weather-beaten granite walls, its blood-red eyes would scan the landscape for anything that moved.
Its diet was legendary:
The Livestock: Entire flocks of sheep and herds of cattle that wandered into the valley for its lush grass simply vanished.
The Locals: Lone travellers taking a shortcut through the mists at night were never seen again.
No Knights, Just Fed-Up Locals
In most British dragon myths, a gallant knight in shining armour rides in to save the day. But Dartmoor is a rugged place, and its history belongs to practical, hard-working people. The ending of the O Brook Dragon story reflects exactly that.
According to legendary Dartmoor historian William Crossing, the local "moorfolk" and tinners eventually reached their breaking point. Losing their livelihoods and their neighbours to the beast was no longer an option. They didn't wait for a hero; they became one.
A mob of angry locals banded together, marched into the valley, and managed to ambush the dragon. Instead of a grand sword fight, they used brute strength to bind the thrashing beast tight from head to claw.
As the old West Country saying goes, they simply "draw'd 'n in the Dart"; they threw the dragon straight into the River Dart.
The Dart is famous for its fierce, treacherous undercurrents (there’s an old saying that "the River Dart demands a heart every year"). True to its reputation, the river swept the bound dragon away into its dark, churning waters, never to be seen again.
Hunting the Dragon Today
If you want to walk in the footsteps of the dragon-slayers, you still can.
If you hike up the banks of the O Brook today, you’ll find a remarkably tranquil valley filled with Dartmoor ponies and historic stone remnants.
But look closely at your maps and the landscape: a distinct rock formation and an old mining area in the valley are still known to this day as the "Dragon's Den."
The Grain of Truth
Where did the myth come from? Like all good folklore, it likely has roots in reality.
The tin-miners of Devon and Cornwall heavily associated dragons with mineral wealth, believing the creatures could sniff out rich veins of ore. Miners working late into the night frequently reported seeing "fiery dragons" or "dragon's breath" rising from the valleys. Today, we know these were likely will-o'-the-wisps—pockets of marsh gas igniting naturally in the damp, boggy ground.
The next time you find yourself near Combestone Tor, take a stroll down to the O Brook. Listen to the water, look up at the granite ridges, and remember the day the locals decided they had finally had enough of the valley's resident monster.




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