Margam Colliery: location plan showing phase 1 tipping area. Scale 1 inch to 1 mile; general plan showing phase 1 tipping area. Scale 1:2500; hydrological plan showing phase 1 tipping area. Scale 1:2500; final profile of stability sections 1-1 and 2-2. Scale 1:500 (2 plans); phase 1 tipping area No 1 Bund stability sections C-C. Scale 1:2500; drainage under tip drains and peripheral ditches. Scale 1:2500; plan of final profile of earthworks. Scale 1:2500; limit of tipping area prior to diversion of overhead power lines. Scale 1:2500; phase 1 tipping area - final profiles of section 1-1 and 2-2. Scale 1:500 (2 plans); phase 1 tipping area final profile sections A B and C. Scale 1:500; and phase 1 tipping area mining subsidence plan. Scale 1:2500. May 1979