Uncontrolled intersections have no signs or lights. Be extra careful because other people may not notice. Look at the back of any sign that the other traffic may be facing. If you see no signs, it’s an uncontrolled intersection. Vehicles are not necessarily required to stop (depending on visibility), but should apply extreme caution, slow down and scan for traffic.
Drivers should yield to whichever vehicle arrived first. If two vehicles arrive at the same time, yield to your right; left turns should yield to straight-through traffic; left turns should yield to right turns. When unsure, demonstrate courtesy.