alcatraz island wallpaperProviderpixabayResolution4752 × 3168Aspect ratio1.50:1AuthorchamancgiSourceOpen original page Download wallpaper Available sizesPreview150 × 100Web640 × 427Large4752 × 3168Tagsalcatraz islandprisonseaalcatrazsan francisco baycaliforniajailislandcoasthistoric