This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
LDCementThamesPlants. Map of the Thames estuary showing cement plants between Dartford and Gravesend location of raw materials and areas quarried up to The cement plants on the north bank are left to right Metropolitan Alpha Tunnel Thames Brooks Shoobridge Co APCM Wouldham BPCM Grays Gibbs Co Ltd APCM On the south bank left to