It is on it's own pole in-between the route sign and yield sign.

If you zoom in a little bit, you can see the shadow of the pole where it's mounted. I've been trying to figure out how to change the location of all three to be closer to where they are.
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Published using OSMCha: https://osmcha.org/changesets/174695534

Sorry, I don't really know how to operate the map. It's right next to the shoulder of 60 hwy facing east/northeast.