Although labeled NW 12th Avenue, this is actually NW 13th Avenue at Lovejoy looking south. Industrial Northwest Portland was in the business of freight, storage and other heavy industry; paved streets and sidewalks could always come later.
NW Hoyt Street was paved with Belgian blocks when this 1917 image was taken. You can still find a few streets in the area paved with these natural stones but Hoyt is all asphalt now. A couple of buildings are still with us in this view to the west looking through the intersection at 11th Avenue.