A) Location

The quarry is located on the outskirts of the village Triefenstein. Furthermore the quarry is sited in the valley of the river “Main”, at the east border of the “Spessart” and 25 km western of Wurzburg. The natural region of this area is the “Marktheidenfelder Platte” (southwest).

B) Overview - Mining and recultivation

Until 1957 the mining for the cement plant Lengfurt was in the quarry Homburger Höhe. From 1957 to 1994 the mining activities was predominantly in the quarry Locksberg. Today, the mining activities are only at the quarry Homburger Höhe.

  1. Permitted mining area of the quarry: 70 ha (Status 2010)
  2. Recultivation status: 0 ha (Status 2010)
  3. Measures of the restoration plan:
  • Conservation of open rock walls
  • Reforestation: controlling fence around the forest to protect the forest against red deer Monitoring trees for diseases, optionally lightening of the young forest
  • Natural forest, optionally sown forest
  • Debris cones, in different heights in front of the walls
  • Enhancement of habitat quality through virgin soil
  • Filling of material on the quarry floor
  • Quarry floor with big stone blocks accumulation
  • Removed areas in the border sites – Succession
  • Channels for flowing water
  • Creation of periodic wet pools
  • Sporadic planting of shrubs

C) Conservation areas

Nature conservation areas

  • 00349.01 Kallmuth, 18.2 ha (adjacent)

Landscape conservation areas

  • 0561.01 LSG innerhalb des Naturparks Spessart (ehemals Schutzzone), 136133,16 ha (surrounding; south)

Natura 2000 areas

  • 6123-371 Magerstandorte bei Marktheidenfeld und Triefstein (surrounding; north)
  • 6123-302 Maintrockenhänge an Kallmuth und Hübschenberg (surrounding, south)
Descriere habitat, floră și faună: 

A) Existent habitats: see biotopes

B) Habitats to be promoted:

  • Pond
  • Anthropogenic rock dump
  • Boulder dump
  • Typha
  • Neglected grassland in semi nutrient habitats
  • Mesophytic marginal vegetation
  • Marginal vegetation of dry and warm habitats
  • Perennial ruderal vegetation of dry and warm habitats
  • Neglected grassland in alkaline habitats
  • Shrubs of dry, warm and alkaline habitats
  • Shrubs semi nutrient habitats
  • Field shrubs
  • Field hedges of dry and warm habitats
  • Succession forest
  • Succession forest with predominating broadleafs

C) Species to be promoted

  • Rock bunting (Emberiza cia)

D) Species of both quarries (Locksberg and Homburger Höhe; 2001-2002)

  • Ferns and vascular plants (accessorily stoneworts): 498
  • Birds: 74
  • Amphibians: 8
  • Reptile: 4
  • Dragonflies: 20
  • Grasshoppers: 15
  • Butterflies: 40
  • Other species: 13 

E) Biotopes (2001-2002)

  • Pond
  • Open water bodies
  • Anthropogenic rock dump
  • Boulder dump
  • Anthropogenic stone pil
  • Anthropogenic soil pil
  • Raw soil area, argillaceous mining area
  • Flood grassland
  • Rich meadow in semi nutrient habitats
  • Neglected grassland of semi nutrient habitats
  • Jaggy population of plants with high adaptation to mechanical pressure
  • Submerged and floating leaf vegetation of standing water bodies
  • Typha
  • Nitrophyte marginal vegetation
  • Mesophytic marginal vegetation
  • Population of nettles
  • Population of Calamagrostis epigejos
  • Annual rudervegetation
  • Perennial ruderal vegetation of dry and warm habitats
  • Perennial ruderal vegetation from fresh to wet habitats
  • Perennial ruderal vegetation with much grass
  • neglected grassland of alkaline habitats
  • Vineyards
  • Field groves
  • Field hedges of dry and warm habitats
  • Copses of dry, warm and alkaline habitats
  • Copses of semi nutrient habitats
  • Blackberry copses
  • Tree row
  • Hardwood population
  • Mixed population with predominating broadleafs
  • Builidng areas
  • Sealed streets
  • Unfortified track or place
  • Stockyard
  • Shrub plantation