McMaster University Archival Collections

University of Toronto: Trench Maps, France

Canadian War Museum

National Library of Scotland: Trench Maps online

BBC Animated Map: Western Front 1914-1918

U.K. Defence Surveyors' Association

Imperial War Museum

British Library: List of Resources

British Library: Trench Maps online

U.K. National Archives

Australian War Memorial: Mapping Gallipoli

Australian Army: WWI Maps online