The 3 villages Lasfelde, Petershütte and Katzenstein (also called LaPeKa) together have been forming a structural unit for decades and were incorporated into the town Osterode in 1971. Today ca 1.300 citizens live in Lasfelde, in Petershütte ca. 800 and in Katzenstein ca. 1.200.

Image Copyright: Michaela Wille

Colloquially, these three villages are also called the '3 lake towns' as the village buildings, which were located near the bank, were affected by the numerous floods of the Söse before the Söse dam was built (1928-1931). The village Lasfelde can look back onto a more than 750-year existence.

Image Copyright: Michaela Wille

Lasfelde has its own primary school, which is also used by the children from Petershütte and Katzenstein.

At the ridge of the Kalkberg above of the present villages was the Pipins castle located, whose oldest areas were built around 500BC. In 1365 the medieval Pipins castle was destroyed in the course of a feud between Duke Albrecht of Brunswick and landgrave Friedrich of Thuringia.

Image Copyright: Michaela Wille

Lasfelde, Petershütte and Katzenstein are also proud of their football club. For years the 1. team of Tuspo Petershütte has been playing in the Lower Saxony league with success.
Also the 2. and 3. teams play successfully in the regional league resp. district league.

Image Copyright: Michaela Wille

With the opening of the narrow-gauge district railway, Lasfelde received a connection to the railway net in 1967, till its closure in 1967.
Through the development of the main road Seesen-Osterode-Herzberg, the traffic connection has become very good.
The fire brigade technical centre for the district Osterode is situated in Katzenstein.