20180521_171831.jpg Dutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston BrookDutton Stop LockThumbnailsPreston Brook
North portal of Preston Brook tunnel.