The Brocken: How Germany's Witch Mountain Got Its Reputation

What the Brocken actually is

The Brocken rises to 1,141 metres above sea level in the Harz, a low mountain range that sits, improbably, in the middle of the north German plain. It is the highest point of the Harz National Park and the highest mountain in Germany north of the Alpine foothills.

The rock is granite. Around 300 million years ago magma pushed up into the folded sediments of the proto-Harz, never reached the surface, and cooled slowly more than 2,000 metres down into a coarse pluton of feldspar, quartz and mica. Much later the whole Harz block was tilted and lifted, erosion stripped away what lay above, and the granite was — in the words of the national park's own guide — "prepared out" of the highland.

That granite rounds from the outside in, leaving heaped fields of smooth boulders: Wollsackverwitterung, woolsack weathering. The block fields are designated a National Geotope within the UNESCO Global Geopark, and the two most photographed formations on the summit, the Devil's Pulpit and the Witches' Altar, are simply good examples of it.

The weather is the other half of the story. The annual mean on the summit is about 3.5 °C, closer to Scandinavia than to Germany's 9 °C. The Brocken records more than 300 foggy days a year — 330 in 1958, still the German record — and is the windiest place in the country, peaking at 263 km/h on 24 November 1984. Above roughly 1,100 metres no closed forest grows; soil temperature measurements in 2011 confirmed this tree line is climatic and natural, the only one in a German low mountain range. Fog on most days of the year plus a bare, boulder-strewn summit gives you a place that feels uncanny without any help from folklore.

The name is older than the famous book

The mountain's second name, Blocksberg, is attested well before anyone wrote a bestseller about it. The form "Blokkesberghe" appears in a Lübeck prayer book in 1485. In 1540, a protocol from a regional witch trial names the Brocken together with a date: the night of Walpurgis. Similar statements turn up in trial records from the late sixteenth and the seventeenth century.

This matters for how we read the tradition. Through the first half of the sixteenth century the mountain appears as a witches' meeting place only occasionally and locally — one candidate among several, since German folklore knew a number of Blocksbergs. What needs explaining is not the motif but its promotion.

1668: the book that settled it

The answer is a Leipzig scholar named Johannes Praetorius (1630–1680), a prolific and commercially successful writer on folklore and witchcraft. In 1668 he published Blockes-Berges Verrichtung, compiling everything he could gather about the supposed demonic goings-on on the Harz Brocken. He drew on older sources and invented none of the material, but he collected, ordered and above all popularised it. Its frontispiece is one of the most reproduced images of a witches' sabbath ever printed.

From the second half of the seventeenth century onward, the Brocken is treated as the principal gathering place for witches from all of Germany. Praetorius's book is the hinge. He did not make the Brocken a witch mountain; he made it the witch mountain, and he made the word Blocksberg stick to it. The parallel with the Externsteine, where a single 1929 book by Wilhelm Teudt gave a rock formation a Germanic past it never had, is close enough to be worth stating plainly: in both cases a place with genuine natural drama acquired its supposed ancient meaning from a modern author with a printing press.

Goethe climbed it in winter, and Faust did the rest

On 10 December 1777 a 28-year-old Johann Wolfgang Goethe set out from Torfhaus in deep snow under the pseudonym "the painter Weber" and reached the summit early that afternoon with a forester named Degen. It was not the first winter ascent — Christlob Mylius managed one in 1753 — but it was the consequential one, feeding into the Walpurgis Night scene of Faust (1808).

After that the tradition was no longer regional. Through Faust, witches dancing on the Blocksberg on the first of May entered the German school curriculum and stayed there. Heinrich Heine climbed in 1824 and wrote it up in Die Harzreise, and the literary reputation compounded.

The festival itself is younger than most visitors assume. Celebrations on the summit became a public fair only at the end of the nineteenth century: the Bad Harzburg Walpurgis Night society held the first in 1896, special trains ran from 1901, and Prince Christian Ernst of Stolberg-Wernigerode then banned them because the "infernal spectacle" bordered on public nuisance. Today's Harz events revive a Victorian tourist entertainment built on an early modern literary motif — no less enjoyable for that, only younger than the marketing suggests.

The Brocken spectre: the ghost that turns out to be you

The mountain also gave its name to an optical phenomenon, and that naming is a small model of how the whole place works. Stand on a ridge with a low sun behind you and fog in front, and your own shadow falls onto the water droplets. With no reference points in the fog to judge distance by, the shadow looks enormous and seems to move on its own. Often the head is ringed by a bright halo or by concentric coloured rings — a glory, produced when uniformly sized droplets backscatter sunlight toward the observer.

The effect happens on any misty mountainside or from an aircraft window. It carries the Brocken's name because the mountain is low enough to walk up and foggy on more than 300 days a year, so people met it there constantly; Johann Esaias Silberschlag described it in detail in 1780 and the name stuck. A giant figure looming out of the fog on the witches' mountain is exactly what legends are built from — and it is your own shadow, explained two and a half centuries ago.

What is old here, and what is not

Element	Earliest solid evidence	Status
The name Blocksberg	1485, Lübeck prayer book	Documented
Brocken plus Walpurgis Night	1540, witch trial record	Documented
Nationwide witch-mountain status	After Praetorius, 1668	Documented, and authored
Walpurgis festival on the summit	1896	Documented, and recent
Pre-Christian cult site on the summit	None	Not established

Something genuinely old does exist in the Harz, just not on the Brocken. Above the Bode gorge near Thale, at the place now called the Hexentanzplatz, runs the Sachsenwall — a dry stone wall of granite blocks generally dated between 750 and 450 BCE and read as part of a fortification. Prehistoric finds there, including a stone displayed as an offering stone, are taken locally as evidence of cultic use. That reading is plausible and unproven; a defensive wall stays a defensive wall until something more specific turns up. The honest summary: the Harz has an Iron Age site with a modern witch name, and a granite mountain with an early modern one.

The mountain that was closed for 28 years

The most recent layer has nothing to do with witches. Until 1961 the summit drew more than 100,000 visitors a year; the Berlin Wall ended that. Sitting directly on the inner-German border, the mountain became a military restricted area, and the Stasi listening post there — codenamed Urian, a folk name for the devil — grew into one of the Warsaw Pact's most important interception sites in Western Europe. A 3.6-metre concrete wall ringed the summit, and sealed surface grew from around 120 square metres in 1800 to 53,000. On 3 December 1989, after a demonstration by roughly 2,000 hikers, the gate was opened. Passenger trains returned in 1991 after a thirty-year gap, restoration cut the sealed area back to about 10,000 square metres by July 2013, and the endemic Brocken anemone and Brocken hawkweed — the latter growing nowhere else on earth — got their heath back.

Practically: how to work with a place like this

1. Choose your route by effort, not romance. The Goetheweg from Torfhaus is about 9 km with only 360 metres of ascent and follows Goethe's probable line. The Eckerloch route from Schierke is shortest at 5 km but steep and rooty. From Ilsenburg the Heinrich Heine trail is 10 km and 860 metres of climb, for trained walkers only. The narrow-gauge Brocken railway runs to the summit for anyone who would rather not walk.

2. Dress for a Scandinavian summit. Frost is possible in every month but July and August, and wind with driving wet does more damage than cold alone.

3. Stay on the paths. The path requirement in the national park is legally binding. The block fields carry map lichens that took decades to grow, the bogs are among the best preserved in Germany, and open fire and fireworks are banned year-round. Make it a ritual you can do standing still and silent.

4. Look before you decide what you feel. Read the granite, the tree line, the endemic plants, the concrete foundations. A place gets more interesting once you know which layer is which.

Voices from practice

Practitioners who work with places rather than objects report the same two things. The summit is often the least atmospheric part of the visit — hotel, station, transmitter mast, visitor centre — while the last kilometre above the tree line, in fog, is where the mountain does whatever it does. And knowing the history does not diminish the experience: standing on a mountain and knowing exactly which book put the witches there is sharper than believing something vague.

What we don't promise

We do not claim the Brocken has measurable energy, sits on a ley line, or heals anything. No pre-Christian sanctuary has been demonstrated on the summit. The witch tradition is real as tradition and traceable as literature — a genuine kind of old, just not the kind usually advertised. Quartz is a mineral, not a treatment, and no stone, ours included, does anything for a medical condition.

Frequently asked questions

Why is the Brocken called the Blocksberg?

The name is documented from 1485, when the form "Blokkesberghe" appears in a Lübeck prayer book. Praetorius made it generally known through his 1668 book, and it has stuck to this mountain ever since.

Was the Brocken a pagan sacred site?

There is no archaeological evidence for a pre-Christian cult site on the summit, and the first documented ascents date from the fifteenth century. The nearby Sachsenwall at the Hexentanzplatz is genuinely prehistoric, but it is a fortification wall whose cultic use is inferred rather than proven.

What is a Brocken spectre?

Your own shadow cast onto fog by a low sun behind you, apparently gigantic because fog offers no reference points, often ringed by a halo or coloured glory. Silberschlag described it in 1780 and the mountain's name stayed with it.

When is Walpurgis Night, and is the Brocken festival ancient?

Walpurgis Night is the night of 30 April to 1 May. The Brocken is paired with that date in a witch trial record of 1540, but the public festival on the summit began only in 1896, with special trains from 1901 — a late nineteenth-century tourist event built on a much older literary motif.

Can I hike the Brocken year-round?

Yes — the summit has been freely accessible since 3 December 1989 and the trails are open all year. Conditions are severe: over 300 foggy days annually, hurricane-force gusts, frost possible in every month but July and August. Stay on marked paths; the national park requires it.

The closest companion to this piece is the Externsteine and how a 1929 book invented their Germanic past. For the wider framework, see geomancy, ley lines and power places; for the same question applied to a festival, whether Mabon is really ancient. Raw stone sits in crystal points and towers.

Sources and further reading

• Nationalpark Harz, Der Brocken im Nationalpark Harz, 8th revised edition, 2020 — elevation, climate records, geology, the 2011 tree line study, border period and restoration figures.
• Johannes Praetorius, Blockes-Berges Verrichtung, Leipzig 1668 — digitised in the Deutsches Textarchiv; used as a historical document, not as evidence for its claims.
• Johann Wolfgang von Goethe, Faust. Eine Tragödie, 1808 — Walpurgis Night scene; plus the diary record of the ascent of 10 December 1777. Heinrich Heine, Die Harzreise, 1826.
• Johann Esaias Silberschlag, Geogenie, 1780 — first detailed description of the Brocken spectre.
• MeteoSwiss and Atmospheric Optics — physics of the glory and the Brocken spectre; documentation on the Sachsenwall at the Hexentanzplatz, Thale, for the Iron Age dating.