Blautopf


The Blautopf (German for Bowl of the Blau, “blau” means blue) is a spring that serves as the source of the river Blau in the karst landscape on the Swabian Alb’s southern edge, in Southern Germany. It is located in the city of Blaubeuren, approximately 16 km (10 miles) west of Ulm. It forms the drain for the Blau cave system and feeds the river Blau, which after 14.5 km (9 miles), flows into the river Danube in the city of Ulm. Because of its high water pressure, the spring has developed a funnel-like shape, which at its deepest point has a depth of 21 metres (69 ft). The water’s blue colour is the result of chemical properties of limestone densely distributed in the water.

 

Title     Blautopf (Panorama)
Click to enlarge pictureBlautopf (Panorama)
Blautopf (Panorama)
picture by tmb  
Cam&Lens   D200 (NIKON) & no lens info     Shutter:   1/15 s
Create Date:   14.may.2008 11:57:56     Aperture:   f/5.0
Location:   unknown (no GPS data)     ISO:   100
Image Number:   n.a.     Focal Length:   17 mm

 

 

Title     Die Hammerschmiede
Click to enlarge pictureDie Hammerschmiede
Die Hammerschmiede
picture by tmb  
Cam&Lens   D200 (NIKON) & 17.0-55.0 mm f/2.8     Shutter:   1/180 s
Create Date:   14.may.2008 11:55:31     Aperture:   f/7.1
Location:   unknown (no GPS data)     ISO:   100
Image Number:   17038     Focal Length:   32 mm

 

The Blautopf is a spring in a Karst environment. One characteristic of a Karst environment is that water, which drains quickly through the limestone in one area, surfaces in another. Karst environments only have subterranean drainage, and there are no bodies of water above ground. Therefore, the size of the Blautopf depends greatly on the level of rainfall, though it never entirely dries out. The Blautopf is the second largest spring in Germany, after the Aachtopf.
Over the centuries, subterranean water has created a huge system of caves. Prominent examples are the Blauhöhle (Blau-cave), discovered by Jochen Hasenmeyer in 1985, and the Apokalypse (Apocalypse), discovered on 23 September, 2006 by Jochen Malmann and Andy Kücha, members of the Arbeitsgemeinschaft Blautopf, a club dedicated to the exploration of the Blautopf’s cave system. While the Blauhöhle is completely filled with water for a length of about 1500 metres (approximately 4935 ft), the Apokalypse is dry; because of its dimensions—170 metres long, 50 metres wide, 50 metres high—it is a special feature of the region.

 

Title     Kloster
Click to enlarge pictureKloster
Kloster
picture by tmb  
Cam&Lens   D200 (NIKON) & 17.0-55.0 mm f/2.8     Shutter:   1/160 s
Create Date:   14.may.2008 12:06:34     Aperture:   f/6.3
Location:   unknown (no GPS data)     ISO:   100
Image Number:   17111     Focal Length:   18 mm

 

 

Title     Blautopf mit Hammerschmiede (Panorama)
Click to enlarge pictureBlautopf mit Hammerschmiede (Panorama)
Blautopf mit Hammerschmiede (Panorama)
picture by tmb  
Cam&Lens   D200 (NIKON) & 17.0-55.0 mm f/2.8     Shutter:   1/5 s
Create Date:   14.may.2008 12:01:01     Aperture:   f/14.0
Location:   unknown (no GPS data)     ISO:   100
Image Number:   17111     Focal Length:   17 mm

 

 

Title     Anne
Click to enlarge pictureAnne
Anne
picture by tmb  
Cam&Lens   D200 (NIKON) & 17.0-55.0 mm f/2.8     Shutter:   1/60 s
Create Date:   14.may.2008 11:52:56     Aperture:   f/4.0
Location:   unknown (no GPS data)     ISO:   100
Image Number:   17037     Focal Length:   55 mm