![Gravel pit](/6ky5vhl/88.jpg)
Gravel pit
A gravel pit is an openpit mine for the extraction of pits often lie in river valleys where the water table is high, so they may naturally fill with water to form ponds or, abandoned gravel pits are normally used either as nature reserves, or as amenity areas for water sports, landfills and Germany former gravel or sand pits that have filled up with water ...