allied observation trenchl, vimy ridge battlefield, givenchy-en-gohelle, lens, pas-de-calais, hauts-de-france, france

ruins monochrome rock wall history soil geology fortification monument temple stonewall asphalt terrain building black allied observation trench canadian national vimy memorial ridge battlefield givenchy-en-gohelle lens pas-de-calais hauts-de-france france trenchl travel old architecture stone canada canadian national vimy ridge memorial givenchy-en-gohelle givenchy gohelle lens calais hauts-de-france france hauts duncan brown landscape craters shell munition ammunition crater battlefield war ww1 wwi fallen dead soldiers allied allies walter allward shells wood trees munitions government history trench trenches lookout observation post