Minnesota Statute 169.20 governs right-of-way at intersections involving county roads. The rules prioritize based on road hierarchy and position.
Driver on the county road has right-of-way over a driver entering from a town road or private road/driveway. The county road is the through highway.
At an intersection of two county roads without signs or signals: the driver on the left yields to the driver on the right (standard "yield to right" rule).
Standard rules apply: first to stop proceeds first; right-hand rule if simultaneous. Traffic signals override.
State/US highways generally have priority. Yield signs are typically posted for county road approaches.
Minn. Stat. § 169.20 Subd. 3(a): "The driver of a vehicle approaching an intersection shall yield the right-of-way to a vehicle which has entered the intersection from a different highway." Subd. 3(b): "When two vehicles enter an intersection from different highways at approximately the same time, the driver of the vehicle on the left shall yield the right-of-way to the vehicle on the right."
Note: Local ordinances may modify. Always obey posted signs.