20180521_173618.jpg Preston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston BrookPreston BrookThumbnailsPreston Brook
Preston Brook tunnel, ventilation shaft - viewed from the former horse path over the tunnel.