Basaltkrater Blauer Stein, Natural monument and former quarry in Windeck, Germany.
Basaltkrater Blauer Stein is a former quarry site displaying distinctive angular basalt columns that emerged from volcanic cooling deep underground. These hexagonal stone formations were later exposed when miners extracted basalt from the landscape, leaving behind this geological display.
Volcanic activity during the Miocene period created the basalt deposits that now define this site. Extraction by mining operations in the early 1900s exposed the underground cooling patterns and left the terrain as it appears today.
The Citizens and Beautification Association of Leuscheider Land transformed the former quarry into a destination for geological exploration during the 1970s.
A marked circular route guides visitors through the site with manageable walking terrain suitable for most people. Parking is readily available near the trailhead, making access straightforward and convenient.
The magma froze within a funnel-shaped vent, creating angular basalt columns that now protrude from the ground as geological structures.
Location: Windeck
GPS coordinates: 50.74900,7.56060
Latest update: December 9, 2025 20:26
Burg Windeck
7.3 km
Au station
7.3 km
Burg Dattenfeld
6.4 km
Siegfall
6.6 km
Raiffeisen Tower
4.9 km
Burg Mauel
6.8 km
St. Laurentius
5.9 km
Thingplatz Herchen
5.1 km
Beulskopf
5 km
Hoher Schaden
4.5 km
Ringwälle bei Stromberg
1.8 km
Burg Reifershardt
3.9 km
Evangelische Kirche Birnbach
5.4 km
St. Peter
5 km
Salvatorkirche (Rosbach)
6.4 km
Evangelische Kirche Leuscheid
2.3 km
St. Petrus Canisius
5.7 km
Siegaue in den Gemeinden Windeck, Eitorf und der Stadt Hennef
5 km
Gedenkstätte 'Landjuden an der Sieg'
6.5 km
Evangelische Kirche Herchen
5 km
Kapelle Stromberg
3.4 km
Altes Pfarrhaus Herchen
5 km
Heiligenhäuschen Alzenbach
6.7 km
Antoniuskapelle
4.8 km
Kreuzkapelle Alzenbach
5.2 km
Sankt-Michaels-Kapelle Hoppengarten
6.2 km
St. Elisabeth
7 km
Eisenbahnbrücke über die Sieg bei Herchen
4.2 kmVisited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes