Belgium : [trench map]

Creator:: Great Britain. Ordnance Survey. and United States. Army. Signal Corps.
Publisher:: The Survey
Description:: Ordnance Survey. Ed. 4 A. maps : col. ; 51 x 61 cm. Scale 1:20,000. Contour interval 5 meters. Metric grid. "Strictly confidential." "Issued by Signal Corps, U.S. Army for use in the School of Military Aeronautics"--Ypres area sheet. GSGS (Series) ; 2742.
Subject:: World War, 1914-1918--Maps. and World War, 1914-1918--Trench warfare--Maps.
Place:: Belgium
Year:: 1916
Resource Class:: Maps
Format:: GeoTIFF
Georeferenced:: false
External Website:: https://catalog.library.cornell.edu/catalog/3677865

CUGIR