English: Map of the Thames estuary showing cement plants between Dartford and Gravesend, location of raw materials, and areas quarried up to 1996.

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 right):

• Dartford (>> BPCM)
• Artillery (>> BPCM)
• Albion (>> BPCM)
• Shield (Wilders & Cary >> APCM)
• Greenhithe (J B White >> APCM)
• Kent (APCM)
• Johnson's (>> BPCM)
• Globe (>> BPCM)
• Swanscombe (J B White >> APCM)
• Britannia
• Robin's (>> APCM)
• ?
• Bevan's (>> APCM)
• Crown (Weston & Co >> APCM)
• London Portland (>> APCM) replaced (1970) by Northfleet Works on same site
• Imperial (>> APCM)
• Red Lion (Tolhurst & Sons Ltd)