The Wazo Hill area with an elevation of approximately 100m above sea level is the highest fossil reef and it is one of the largest carbonate occurrences on the Tanzania coast. The quarried landscape looks barren while heaps of topsoil is deposited on the edges of mined blocks as source of materials for planned restoration. Water is pounding in depressions created by excavation works and undulations of the bottom of the quarry landscape. Mining activities included excavation of the overburden red soils and blasting of the underlying limestone rock. The red soil together with the topsoil which is rich in organic matter, grass and tree roots is removed and stockpiled as spoil material. The spoil material is kept along the edge of the quarried blocks for easy distribution during restoration phase. Remnants of large boulders can be seen over the quarry site.

Topographical description: 

The quarry is located at Wazo Hill that is north-west of the Central Business District of Dar Es Salaam City, as indicated in Figure 1. The central coordinates of the site are 6°38'44.2" South and 39°09'26" East. The average site elevation is 100 metres above sea level. Administratively, the area is located in Wazo Ward, Kinondoni District, about 25 km north of the Dar Es Salaam City. The rich rock material extends for about 2.5 km parallel to Dar es Salaam- Bagamoyo Road.

Habitat, flora & fauna description: 

Few trees such as baobab have been left untouched for protection and aesthetic reasons. The ongoing quarry rehabilitation and renaturation (through trees and grasses planting and caring) is attracting various species of fauna including birds, reptiles, small mammals, insects and butterflies The scattered heaps of topsoil have attracted invasion of exotic trees species such as Leucaena leucocephala particularly along the quarry boundary and edges. Water ponds formed in depressions after removal of limestone rock and as part of rehabilitation work are attracting animals.