the city with many activities and events as well as a city festival from August 15th to 17th. Geography Blomberg is 45 km south east of Bielefeld, 20 km east of Detmold and 17 km south west towards Bad Pyrmont. The district is located in the southern foothills of the Lippe mountain range and in the area of Blomberger and Schwalenberger Heights. The core city is located in the center of the so-called Blomberger basin, which lies about 150 m above sea level and clearly separates itself from the surrounding area. The hem of the basin to the north and east are the approximately 400 m high wooded ridges of Barntruper and Blomberger Stadtwald with the Dicker, Becker and Winterberg. To the west are the Hörntruper Berg, the Meierberg, the Mossenberg (228 m) and the Püllenberg (261 m), while the border in the south of Nessenberg (235 m), Spielberg (239 m) and Steinberg (342 m) is formed. The drainage of the eastern part of the Blomberger basin is made by the Diestel, a left tributary of the Emmer. Between the districts Istrup and Großenmarpe a watershed has formed. For this reason, the western part of the Blomberg basin is drained via the Marpe and its tributaries towards Bega / Werre. The lowest point of the municipality is at 139 m, the highest is the summit of the winter mountain at 429 m. Geology The municipality is located on the southern flank of the Pyrmont-Piesberger axis, there are almost exclusively rocks of the Middle (Km) and Upper Keupers (Ko) open-minded. The rock strata, which were once stored horizontally in the Middle Ages, were raised in the Tertiary around 30 million years ago and formed the Blomberger Sattel. By erosion in the center of the saddle the older gray and red marl of the Middle Keuper (Km1) were uncovered, which is also called Gipskeuper because of switched-on layers of gypsum. The result was the clearly recognizable pelvic structure, this phenomenon is called relief reversal. The reed sandstone (Km2) then forms a first striking terrain level. The city itself is located on the western edge of this steep step. The reed sandstone was obtained in small quarries as quarry stone for construction purposes. The marls of the so-called Red Wall (Km3) are susceptible to weathering, only the following harder stone marls (Km4) give rise to another stage in the terrain. The outermost edge