County Route marker sign

What to do

Use the number to follow the county route.

Use the yellow-on-blue pentagon and its number to follow county roads, which often link smaller towns not shown on State signs.

Where it's used

Section 2D.11 says that if county road authorities set up a special system of important county roads, a statewide policy with a uniform numbering system must be adopted. The County Route (M1-6) sign must be a pentagon with tapered lower sides, showing the county name, route number and border in yellow on blue, at least 24 x 24 inches. When it appears on a guide sign, the county name and the word COUNTY may be left off.

Don't confuse it with

• School: The School sign is also a pentagon but is fluorescent yellow-green with children symbols, pointing up; the County Route sign is blue and yellow with a number.
• State Route marker: State route markers are usually black and white and designed by each State.
• U.S. Route marker: The U.S. Route marker is a black-and-white shield.