Landmarke 10 Auerberg
Oberes Selketal
Oberes Selketal
Harz Basement Rock The Auerberg Mountain near
Stolberg ( 1 )
Stolberg ( 1 )
Near Stolberg the porphyry
cone of the
Auerberg Mountain rises
above the sediment
sequences of the Harzgerode
Zone. From the
car park of the Schindelbruch
Naturresort it is
only a short one km climb
to the top of the Große
Auerberg Mt. (579 m
above sea level) with the
38 m high Joseph’s
Cross.
The observatory is the
largest double cross in
the world. There, where in the 17th century an observation
tower had formerly stood, the art-loving Earl JOSEPH ZU
STOLBERG-STOLBERG (1771-1839) had a most remarkable tower
built. With Karl-Friedrich SCHINKEL (1781-1841) he was able
to engage the most famous architect of Germany’s Classical
period. SCHINKEL designed the observatory in the form of a
double cross, for the construction of which 365 oaks were
felled. The observation tower, named after the Earl, was
opened in 1834 but was destroyed by lightening in 1880.
The Joseph’s Cross was rebuilt in the style of the original
design in 1896 with the support of the Harz Club’s Princely
Stolberg Chapter, but this time in metal, fabricated by the
Dampfkessel- und Gasometerfabrik Braunschweig. The
Eiffel Tower, which had been built seven years earlier in
Paris on the occasion of the World’s Fair, most probably
served as model.
In 2006 the completely rehabilitated Joseph’s Cross was
named the most beautiful observation tower of the entire
Harz and awarded the Harz Nature Park Prize. The tower
and surroundings are cared for by the operator of the
Bergstübel. The cozy Bergstübel Joseph’s Cross Restaurant
is open daily from 9 a.m., offering regional cuisine. Only in
winter is it closed on Monday.
The rhyolite lava of the Auerberg Mountain consists of a
quickly cooled finely crystalline basic mass within which the
crystals--the so-called “Stolberg diamonds”--“swim”. These
are di-hexahedral crystallized quartzes approximately 1 to
13 mm in size and up to 8 mm orthoclase.
The nature resort Schindelbruch is inviting not only because
it has a sun terrace and a large children’s play area, but also
because it has built a wonderful Walderlebnispfad (forest
experience trail) in the immediate
surrounds. At the hotel
reception we can be outfitted
with protective glasses,
as there are tools ready at
hand along the forest experience
trail to crack the
“Stolberg diamonds” out of
stones placed there expressly
for this purpose.
Borders Alte Münze (Old Mint)
Museum - Stolberg ( 2 )
Museum - Stolberg ( 2 )
The area covered here was earlier divided
between the territory of the Earls
of Stolberg (later Prussia) and the territory
of the Princes of Anhalt. In the
Museum we find, among other things,
the following old German chronic:
“In May 1563 four miners working the
Beiwende Mine, which belonged to the
Anhalt Harz District, were taken prisoner
by the Earls of Stolberg.” These and
other acts of violence accompanied a
legal process of over 80 years’ duration
of the Reichskammergericht
(German Court) between the Princes
VON ANHALT and the Earls ZU STOLBERG.
The core of the dispute was founded
on what the VON ANHALT Princes felt was
an incorrect return of the castles and
the towns of Güntersberge and
Harzgerode in 1536, which the ZU
STOLBERG Earls had acquired with resale
rights in 1498. The Anhalt dynasty demanded the return of
property which the Stolberg Earls claimed to have attained
from other families, such as the VON HOYM family. Even a
number of investigative commissions appointed by the
Reichskammergericht in Speyer could
not sufficiently clarify the ownership
rights of the two parties as the border
markers had disappeared, had
been made illegible or in the case of
missing affidavits the testimonies of
the witnesses were so contradictory
that a final decision was impossible.
Particularly volatile in this jurisdictional
conflict was the determination
of the rights to the salt and precious
metal mines in the contract of 1498. The mines were not
included in the usage rights purchase agreement, but this
did not stop the Earls from illegally carrying out mining in
the Anhalt territory. As the battle concerning borders and
usage rights was causing both parties severe economic
loss, they entered into an amicable agreement in 1613. As
a result of the Thirty Years’ War (1618-1648), mining in the
Earldom of Stolberg came to a standstill. Renewed operation
around 1660 was only moderately successful. New
mining technology and German minting laws lead to another
renewal of mining in the Straßberg mines at the end of
the 17th century. History and techniques of minting coins
are given broad attention in the Museum exhibit.
Tours in German and English by prearrangement: +49(0)34654 85960
Opening hours: Wed. - Fri. 10:00 a.m. – 12:30 p.m. and 1:00 – 5:00 p.m.
Sat., Sun., + Holidays 10:00 – 12:00 a.m. and 1:00 – 5:00 p.m.
Mining in Stolberg Glasebach Mine - Straßberg ( 3 )
For those travelling by car there is
ample parking available on the former
above ground plant area of the
Glasebach Mine; simply follow the
signs in Straßberg. But also of interest
would be a short walk along the
Bergbaulehrpfad (Mining Educational
Trail) from the Hüttenplatz stop of
the Harzer Schmalspurbahn (Harz
Narrow Gauge Railway).
The above ground plant area presents
exponents of mining from the time following the Second
World War (operation demonstrations on intact machines).
Traces of historical mining from the old mining period, on the
other hand, can be discovered in the Glasebach Mine. The
descent into the mine begins at the above ground Radstube
(wheel chamber), which houses the
reconstructed water wheel (9.5 m in
diameter). The required protective
gear is put on here before going in to
experience water lifting technology,
various mining and timbering construction
methods (oak timbering
from the 18th century, dry wall construction),
an inclined shaft and
histor ic hydraulic engineering techniques
as well as discovering the richly
colourful mineralization of the mine. Using a stairway constructed
in the main shaft the first and second galleries can be
reached. The tour takes approximately 80 minutes.
After the opening of the Heidelberg Silver Mine north of
Straßberg in 1438, the first silver metallurgy blast furnaces
were put into operation in 1462 at the smelting works of the
Earls of Stolberg. Around 1690 the Seidenglanz Mine, later
called the Vertrau auf Gott Mine, is
mentioned. During the heyday of
Straßberg’s mining in the first half of
the 18th century, when at times up to
500 miners were working here, the
mine was once again given the name
Glasebach. At the turn of the 18th to
the 19th century the bankruptcy assets
of the Straßberg mining operation
were purchased by Anhalt. Nearly 150
years later, in 1950, the old shaft was
reopened and the Glasebach Mine explored anew. In the following
years fluorite was mined and transported along an
underground connection to the Fluor Shaft, where the material
was then brought above ground.
www.strassberg-harz.de
Opening hours: (April-October): Tues.-Thurs. 10:00 a.m. – 4:00 p.m.
Sat./Sun. 10:00 a.m. – 5:00 p.m.
Special openings for groups as well as tours in English by prearrangement:
+49(0)39489 226
Cliffs Pfingstfelsen Cliffs - Stolberg ( 4 )
Coming from the Stolberg Marktplatz
we drive along the Rittergasse, pass
through the Rittertor (gate) and park
the car at the Hotel Chalet
Waldfrieden. The architect of this
imposing building was no lesser person
than the Berlin architect KARLFRIEDRICH
SCHINKEL. It was built 1820
on commission of the Earls of
STOLBERG ZU STOLBERG as a Schützenhaus
for marksmen. Today it houses a
hotel and restaurant as well as a coffee machine museum
(www.kaffeemaschinen-museum.de). After our trek to the cliffs
of the Pfingstfelsen we follow the invitation of the Beutel family
and visit this unique museum (open 2:00 - 5:00 p.m. daily
except Monday and Tuesday, admittance free). But first we
walk further upwards in the Lude Valley, passing the Waldbad,
a forest swimming pool, and Reiterhof
riding grounds. A particularly attractive
landscape view opens up onto the Swiss
huts nestled in a spacious forest meadow.
The trail, with the Harz Club trail
mark of a yellow stripe on a white background,
bears from here on the curious
name “Besoffener Weg” (Drunken Way).
To the left of the path the Lude Stream
babbles along and to the right on the
slope of the Benedixköpfe the impressive
cliffs line up. Numbering among these are the Pfingstfelsen
(Whitson Cliffs), which provide a glimpse into the earth’s history.
Naturally occurring diabase (dolerite, a type of submarine
basalt) can be seen. From the month of May on into the summer
the seductive scent of dame’s violet (Hesperis matronalis),
an up to 2.5 m tall cruciferous plant, fills the air. Those who
fear losing their way can follow the path to the Ludeteich (pond)
and then return to the starting point. The alternatives of walking
past the Tannengarten (Pine Garden) in the direction of the
Stolberg Castle or past the Röhrenteich (Reed Pond) back to the
Lude Valley are attractive.
Earth and mining history tour Out and about in Anhalt Territory
The chosen point of departure for a
tour with much to experience, passing
in part through Landmark 15, is
Harzgerode. The route consists of
several segments each of which is
suitable for a half or full day tour.
Harzgerode was chosen as the point
of departure because the rather unassuming
castle there still housed the
Anhalt Mining Department in the 19th
century. A very beautiful depiction of
the ore vein system of the ore mined here can be seen on the
fountain on the Marktplatz of the town (see also the
Landmark flyer). From the large car park on the B242 we follow along the B242
to the junction with “Am Ehrenberg” Street. Now we take the
pleasant overgrown trail across the dam crossing the
Hahnröder Teich (Pond). After crossing over the tracks of the
Harz Narrow Gauge Railway we first keep to the right and use
the circuit route in the direction of Himmelsgarten (Heaven’s
Garden) and the Liebeslaube (Lovers’ Arbour), respectively.To the Schneckenberg Stone Quarry ( 5 )
The Liebeslaube is a weather shelter located
directly above the Schneckenberg
Quarry, which was in operation until
1938. Exposed there are the Hercynkalke
(limestones) of a large block of rock lying
in geologically foreign surroundings
(Großolistholithe in the Harzgerode Zone).
It is part of the Harzgerode Olisthostrom,
a sediment body with chaotic texture formed
from a gravity-induced sludge flow
which became imbedded in the sediments
of the area in which it came to rest. The quarry reveals a
particular structural geologic composition of Devonian limestone.
It is the most well known point of discovery of the
princeps limestone fauna (fossils from the lower Devonian
beginning 405 million years ago).To the Pioneer Tunnel - Alexisbad ( 6 )
After visiting the Schneckenberg Quarry the
tour continues along the circuit trail. We
take the next trail branching off to the right,
keep to the left and soon reach the Paul –
Krause - Hütte (a Harz Club weather shelter
with info marker). From there it is only a few
steps to the Trompel nature monument--a
circle of old maple and lime trees which
mark the location of the third shaft of the
Schwefelstollen (Sulphur Gallery). In 1880
the shaft was backfilled and the ground
levelled. The trees are from that time. The
Schwefel Gallery followed the Reichen
Davidsgang lode. Up until 1752 pyrite and
galena were extracted.
Next we follow the very well executed nature education trail in
the direction of the Köthener Hütte shelter, built in 1897. At
one point on the trail a number of hunting facilities present
themselves reminding one of an adventure playground. But it
gets more adventurous after we have turned off at the Köthener
Hütte onto the southerly extending downhill path, called the
Klippenweg, in the direction of the town of Alexisbad. First we
pass by the Teufelsklippen before reaching the Pionier Tunnel.
Here the hike takes us underground for a little way. The tunnel
was erected by the Second Company of the Magdeburger
Pionier Battalion No. 4 (Engineering Corps) in May 1900. It is in
part timbered in accordance with mining technology and offers
protection from rain or the opportunity to cool off during hot
summer weather.Route of German Emperors and Kings To the “Mühlenberg-Zug below
the Erichsburg” Mine ( 7 )
the Erichsburg” Mine ( 7 )
Centuries ago the Hagenrode working monastery
was located in the Selke Valley. In 933
King OTTO III granted the Abbot the right to
hold market, to mint coins and to collect toll
fees in Hagenrode, which at that time was
the administration centre of the Harz properties
of the Nienburg Monastery. Following
the dissolution of the Monastery during the
Reformation its administration was transferred
from Nienburg to the regional sovereigns.
During the Peasants’ Revolt in 1525
it was ravaged by marauding peasants. In
1870 the stones were used to construct the
Hotel Klostermühle. From this historic location
we follow the Weg Deutscher Kaiser und
Könige (Route of German Emperors and
Kings) upward through the Friedenstal Valley.
Soon we reach a place where the tracks of ironclad wagon
wheels worn into the stone have been washed free by the
stream. At this point the vertically layered slate slabs, placed
there to stabilise the ground and provide secure footing for
the draught animals, are clearly visible. This elaborate road
construction indicates the former importance of the Friedenstal
Valley. Further up the valley cascade-like dam reservoirs for
storing water to drive the waterwheels, which were used for
widely divergent purposes in the Mägdesprung area (Landmark
15), were located.
Finally we reach the entrance to the mine in which, from 1708
through 1741, under its name at that time, Fürst Karl Wilhelm
Mine, a total of 122,000 tonnes of copper pyrite were extracted--
sufficient for the production of 25 tonnes of copper per
year. The lode also bore fluorite, arsenic pyrite, pyrite and
wolframite. The lode runs through granite at a southerly slope
of about 65°. When Prince VICTOR II FRIEDRICH VON ANHALTBERNBURG
(1700-1765) took over the mine in the Anhalt Harz,
mining was discontinued. The mine was apparently no longer
profitable.Robber Barons and Forest Timber Allotment Rights From Bergamt Müller Pond to the Erichsurg
To provide water power for draining the Fürst Karl Wilhelm
Mine two ponds, the Erichsburger Teich (1709) and the Bergrat
Müller Teich (1737/38) , were constructed above it. Bergrat
MÜLLER from Gernrode was an important mining expert of his
time. A small and heavily overgrown quarry at the Bergrat
Müller Teich exposes two-mica granite of the Ramberg with a
well-formed weathering zone (Upper Carboniferous).
Of particular interest is a border stone on the dam of the
Bergrat Müller Pond. It is evidence of the Schlageinteilung
(forest timber allotment rights), for which the Duchy of
Anhalt’s forestry commissioner, JOHANN JACOB BÜCHTIG (1729-
1799), was responsible. BÜCHTIG was the first German practical
forestry officer with a university degree (Halle University) and
held the office of Bergamtsassessor (state mining inspector) in
Harzgerode from 1765 on. From the romantic blockhouse complex of the
Merkelbach Ferienpark along the Beckstraße,
just 700 m in the direction of Siptenfelde, a
small path left of the embankment leads up to
the Erichsberg Mountain. There the old earth
defence walls and the still-visible stone remnants
of the administration area are located: a
house and residence tower of the former core
citadel. The Erichsburg (9
was sold to the
Earls of STOLBERG in 1320. The “Spangenberg
Mansfeldische Chronica” from 1572 reports
on its further destiny as follows: The robber
baron of the worst sort, Earl HERMANN VON
STOLBERG, carried out his deeds, sparing no
one, until the landed Earl of Thuringia together with citizens
from Erfurt, Mühlhausen and Nordhausen laid the robber’s
nest waste and held the severest of judgements. The Earl was
forced to swear he would never rebuild the citadel. It has
remained vacant ever since. In the immediate vicinity mining
may have been carried out in the Middle Ages (the so-called
“Erichsburger Glanz”).
Evidence of Mining Through the Uhlenbachtal Valley
About one kilometre further we leave the
Beckstraße and descend to the right towards
the valley, then follow the signs to Forsthaus
Uhlenstein. A pond stretches before the idyllically
situated forest house. Continuing
along into the valley we come to the former
Brachmannsberg Quarry , which as recently
as a few years ago was partially backfilled
with material from the construction of the
water drainage gallery in the valley of the
Uhlen Stream. At the quarry the main shaft
of the Brachmannsberg Mine, drifted in 1784
to a depth of 50 - 55 m, is located. Fluorite
was extracted. Finely dispersed pyrite was
responsible for acidification and contamination
of the mine water, which even today
cannot be fed into the drainage canal before
having undergone the necessary treatment.
Further down the valley we must cross the B242 thoroughfare,
and follow approximately 100 m along it to the right.
Soon the opening to the Brachmannsberg Gallery, drifted
1995 -1998, is reached. Just as the Biwende Gallery on the
other side of the valley, it was also used for controlled drainage
of the old mines. After the drainage gallery had been
drifted a water treatment plant was erected between the
two gallery openings. 11
Where the Uhlenbach Valley opens onto the Selke Valley the
route follows along the district road into the town of
Silberhütte. There, where a potassium works and an oil mill
formerly stood, a silver smelter was set up in 1692. In 1752
this plant made way for a royal glass factory, which produced,
in particular, large-pane glass tableware. A large
cast-iron plaque there calls attention to the fact that Duke
ALEXIUS FRIEDRICH CHRISTIAN (1767-1834) had the glass smelting
works revamped and improved in the year MDCCCXXV
1825.Open Air Museum Harzer Waldhof Silberhütte ( 12 )
The Harzer Waldhof has developed into a
point of particular interest, not only for
school classes and families with children.
This open air museum was first
erected in connection with public relations
work of the Harzgerode Forestry
Department. Together with a group of
interested supporters, the State Forestry
Department has further augmented the
complex and added an exhibit (including
information about historic power saws) in
the former train station building. On the
freely accessible property the development
of forestry and its (earlier) importance
to mining and charcoal production,
as well as today’s important forest
functions as provider (wood), protector
(nature, water, and soil conservation)
and as a recreational resource are presented,
in German.
Following geological hiking trails Returning via the Pfaffenberg
Neudorf Mine ( 13 )
Neudorf Mine ( 13 )
Beginning directly on the Waldhof site a
four km long geological trail crosses over
the Wolfsberg Mt. to the Birnbaumteich
Pond. If one does not wish to wipe the
morning dew from the grass growing along
the path one should not begin the walk in
the early morning! At the Birnbaumteich
Ferienpark, a holiday camp, we find the
starting point of the Neudorfer Bergbaurundweg
(Neudorf Mining Circuit Trail).
Numerous yellow DENNERT historical markers
provide information in German about
the area with the region’s earliest known
mining. Prince OTTO VON ANHALT (†1304)
granted the monasteries prospecting rights
in the Birnbaum territory (Biwende lode).
Four km further, having arrived in Neudorf, patient searching
is well worthwhile as the location abounds in artefacts bearing
witness of its mining history, which ceased as late as
1941. From 1887-1912 a narrow gauge (750 mm track
width) ore railway extended 4.5 km from here to the town of
Silberhütte (see the signs there on the Bremsenberg). The
extraction shaft of the Meiseberg mining district (Herzog
Alexis Vertical Shaft on the Neudorf lode, depth 180 m) was
located directly in Neudorf. Departing from its former location
we go through an area called “In den Eichen” and along
the southern edge of the town to the Pfaffenberg Mine
(Prince Christian Shaft, depth 355 m) or to the Ölkeller. Numerous gullets (underground water channels) join the
Meiseberg Wipper Gallery here. They supplied water to drive
the water wheel which operated here beginning in 1805. In
1822/23 a steam engine for lifting the underground water
was erected on this location. Further along we pass the
Neudorf Gondelteich Pond and return to Harzgerode along
the Harzgerode pathway. With the town of Harzgerode
al ready in view the Albertinenweg trail branches off to the
left (passing the Princess Elisabeth Albertine Mine on the
Feld and Quellenzug, where lead and silver were extracted
until about 1850, depth 272 m).Relaxation At the Mountain Lake Güntersberge ( 14 )
Those weary from so much
walking ride the Selketalbahn
(Selke Valley Railway) from
the stop at Alexisbad or
Silberhütte to the
Güntersberge stop. From
the Harzer Schmalspurbahn
(Harz Narrow Gauge Railway)
station it is only a short
distance to the Bergsee, a
lake with boat rental and
swimming. The lake, also
known as the Mühlenteich, covers an area of seven hectares
and was originally built to supply water to the mills, crushers
and mine operations in the Selke Valley below it. On the slope
of the south shore the geosite Aufschluss Teichdamm (Dam
Exposure) (N51°39.420’; E 010°58.598’) is located. For the
trained eye a reference profile of national importance is apparent:
Devonian Hercyn limestone in submarine sliding masses
from the Lower Carboniferous is exposed.
In the shady woods below the dam a very interestingly planned
nature information trail begins, constructed by the local
branch of the Harz Club, along which about 1.5 km further the
ruins of the Güntersburg Fortress is reached. There, 484 m
above sea level, an extensive fortified settlement with the
remaining foundations of gate towers and
other buildings laid waste at the beginning
of the 17th century can be found.
Historical records show that a settlement
with a fortress stood on this spot on the
Kohlberg in the 11th and 12th centuries.
Wood frame houses with slate roofs stood
on the stone foundations. As early as
1319 a route running along the foot of the
Kohlbergsburg Fortress was named the
“Hohe Straße” (“High Street”). Exciting
adventures await the young visitors along
the three kilometres of the nature experience
trail where at 15 stations one can
play and challenge one’s abilities.
Geological Development of the Area
To get acquainted with the area around the Auerberg Mountain it is
worthwhile to review the early formation phase of the argillaceous
slate and Greywacke. It is the period of the earth’s antiquity during
which in Silurian, Devonian and Lower Carboniferous (400-300 million
years ago) an expansive ocean covered the area of what is today
Middle Europe. Over millions of years enormous amounts of sediments
were transported into this ocean. Only the very fine particles
reached a distance far from the shores, and these sediments formed
layers of argillaceous sludge which then became solidified under
great pressure. In other places deep fractures opened on the ocean’s
floor from which molten basaltic magma flowed, contributing to the
formation of the diabases (dolerites) now widely existent in the Harz.
The further development is described by KNAPPE (1976) as follows:
“Continually this constantly sinking ocean basin, the so-called ‘geo -
syncline’, was filled with clay, sand, lime or volcanic rock.” During
the Upper Carboniferous (300 million years ago) the Variscan folding,
pushed forward from SE to the NW by plate tectonics, engulfed
the sediment-filled basin. The constant upward pressure finally
forced the entire complex above sea level (folding of the Variscan
Mountains). At the close of the folding era molten rock masses,
usually of granite composition, again rose from the depths, were
pressed into the folded strata and slowly solidified there to directionless
coarsely grained plutonites (gabbro, granite). As early as the
19th century geologists believed to have recognized a connection
between the granite bodies (e.g. of the Ramberg) and the occurrence
of ore lodes--but this theory proved to be incorrect. The ore lodes
are much younger, of Mesozoic or even younger origin, and were
formed by metal- and mineral-rich solutions rising from the lower
crust and filling the fissures, thus forming the ore lodes. The centre
of the Lower Harz lode mineralization lies in the area of Straßberg
– Neudorf - Harzgerode. The Auerberg Mountain is a younger lava
outflow, equivalent to plutonic Ramberg granite rock. It is probable
that both rocks have a common magma source.
Ausgewählte Hotels
Naturresort SchindelbruchStolberg/Harz - Schindelbruch
www.schindelbruch.de
Tel.: +49(0)34654 8080
Hotel Beutel „ChaletWaldfrieden“ Stolberg/Harz
www.hotel-beutel.de
Tel.: +49(0)34654 8090
Ferienpark MerkelbachSiptenfelde-Friedrichsbrunn
www.ostharz.de
Tel.: +49(0)39487 7530
Berghotel „Glück auf“Güntersberge
www.berghotel-guentersberge.de
Tel.: +49(0)39488 301
Kinder- und Erholungs zentrumGüntersberge
www.kiez-harz.de
Tel.: +49(0)39488 7622
Bergstüb’l JosephskreuzStolberg/Harz
www.bergstuebl-josephskreuz.de
Tel.: +49(0)34654 476
The Geopark Harz. Braunschweiger Land. Ostfalen was founded in
2002. The Regionalverband Harz e.V. has taken responsibility for
the Harz area. The Königslutter-based FEMO organisation is
responsible for the adjacent northern area. The map of the area
shows the locations of all of the Landmarks. Flyers like this one
for each of the Landmarks can be of assistance in planning your
next visit to the Nature and Geopark Harz.

The plan can assist you in planning your own personal georoute.
Expert guided tours in German as well as English can be
arranged (contact: Head, Arbeitsgruppe der Geoführer at the
Regionalverband Harz, Dr. STEIGER +49(0)3944 369085 or
email: T_Steiger@gmx.de).
The Regionalverband Harz e.V. wishes you pleasant recreation
and interesting glimpses into the geology and history in the
parts of the Nature Park Harz/Saxony-Anhalt presented here!
Author: Dr. K. George
Photos: George, Hotels
Editing: Dr. K. George, Ch. Linke
Translation: H. Pankow
Photos: George, Hotels
Editing: Dr. K. George, Ch. Linke
Translation: H. Pankow