Tank Quarry is one of the largest and most prominent hard rock quarries on the Malvern Hills. The quarry contains exposures of igneous rocks that are approximately 700 million years old, from the Precambrian period. This makes them the oldest in Worcestershire, and amongst the oldest in the UK.

Quarrying occurred at Tank from 1870-1970, with the tough, hard igneous rocks being used as a source of raw materials from building stone and road aggregate. The rocks quarried are Diorite and Granite belonging to the Malverns Complex. The origin of these rock types tells a long and fascinating story about the position and shape of the continents during the Precambrian. The short trail around the quarry explores this story by examining the different types of rock to be found within the quarry and in outcrops on surrounding slopes.