New Causeway mile-marker signs an eyesore, some commuters say | Traffic | nola.com
Marking the miles one milepost at a time | ADOT
Colorado officials replace '420' mile marker with 419.99 to deter marijuana-minded thieves | The Independent | The Independent
Answer Man: Why does MoDOT use so many mile-marker signs?
Mile Markers | Guide Road Signs
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Highway Trivia Mile Markers - Thor Motor Coach
Colorado Changes 420 Mile Marker Sign to Ward Off Heists
State DOT crews replace 86 mile markers with 17 signs | News | oleantimesherald.com