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Time trail: Maryon Park

Gilberts Pit

This former quarry allows a rare opportunity to view geological exposures 55 million years old. The black pebbles of the Blackheath beds and the sands and clays of the underlying Woolwich beds are studied by engineers and geologists for the many engineering projects under London. Thanet Sand was quarried here for the Woolwich Arsenal and for making glass bottles. Scree now covers the slope and the floor is covered by war-time rubble so it is not possible to see the Thanet Sand or the Chalk beneath.

Nearest train station: Charlton

Distance: 0.8 miles (1,408 yards)

Listen: Points of interest on this time trail

Map of Gilberts Pit

Explore further

You can combine your time trail mini walk with:

Green Chain Walk Section 5