Colorado switched mile marker "420" to "419.99" to stop people from stealing it


Colorado officials hope the difference of one-hundredth of a mile will prevent thieves from stealing the mile marker 420 sign along Interstate 70.

Colorado Department of Transportation says the 'MILE 420' sign near Stratton was stolen for the last time sometime in the last year, and officials replaced it with a sign that says 'MILE 419.99.'

The sign was targeted multiple times by people keen for 420 paraphernalia. The number has long been associated with the smoking of marijuana, though its origins as a shorthand for pot are murky.

Mile 419.99, about 25 miles from the Kansas border, isn't the only place in Colorado with a fractional mile marker.


Cameron Pass in Larimer County has a 'MILE 68.5' sign after frequent thefts of the 'MILE 69' sign.

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