Battle of Hill 70. Situation as reported by Divisions, Midnight, 16-8-1917. Trenches corrected to 20-7-17. 1st Field Survey Coy., R.E. 2458, Canadian Corps Topo Section. Annotation: "Ry Alley" is printed in blue pencil labelling a trench just north of Loos. Map donated by R. James Steel. Location: Research Collections, Fonds: WWI Trench Maps France, Box 14, Envelope 8.
Sheet number: [36 SW2]. Overprint in blue: Barrage map "M" [Canadian Corps]. "Trenches corrected to 9-7-17". "1st Field Survey Coy., R.E. 2458." Detail, grid & contours grey; German trenches and names red; British trenches and names blue; corps & divisional boundaries blue; field artillery barrage lines & timings black; jumping off line, final objective & posts green; intermediate objectives blue & red lines. The field artillery barrage map for the capture of Hill 70, 15 August 1917. Used by Major J.C. Thomson MC (OC 20th Siege Battery, 8-inch hows)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 655
Sheet number: [36c SW]. Overprint in green: Barrage map for medium & heavy howitzers. "Trenches corrected to 20-7-17". "1st Field Survey Co., R.E. 2507." Detail, grid & contours grey; German trenches & names red; British front line grey; medium artillery barrage with battery numbers green; heavy artillery barrage with battery numbers blue. The medium & heavy artillery barrage map for the capture of Hill 70, 15 August 1917. Used by Major J.C. Thomson MC (OC 20th Siege Battery, 8-inch hows)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC21; envelope_number: 656
Sheet number: [36c SW1]. "1st Army H.Q. 10/8/17." "1st Field Survey Co., R.E. 2557." "Printed by no. 6 Advanced Section, A.R.&S.S." Detail and grid grey. Burnt-out area, possible MG emplacements & reference numbers in red. Shows cellars, sewers, etc. Copious printed notes in left & right margins relating to cellars etc. Stamps in margin: No. 7 Canadian Siege Battery, Oct 15th 1917. From Major J.C. Thomson MC (20th Siege Battery RGA)., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC23; envelope_number: 721
"Barrage map, Canadian Corps, Artillery Order no. 65". Sheet: [36cSW]. "Trenches corrected to 18-8-17". "1st Field Survey Co., RE. 2442". Detail, grid and contours grey; German trenches and names red; old British front line grey; final objective and 1st, 2nd & 4th Canadian divisional artillery boundaries green. Used by Major J.C. Thomson MC (OC 20th Siege Battery, 8-inch hows). WW1 Trench Map Collection: Box PC21, Envelope 651.