Looks like it wasn't even an alt, it was on the 2019 course.
That might be the route when they can't clear McKenzie of snow in time. One of the editions I rode they only cleared it the day or two days before race start so almost everyone would've had an alt route planned if McK didn't open in time.
@hippy started
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Looks like it wasn't even an alt, it was on the 2019 course.