This is one of my favorite traffic signs in all of the world. You can find it if you drive north from Anchorage, Alaska towards Wasilla and Palmer.
When I lived in Alaska in 2010-2011, I would take the exit to the right to go to Palmer. If you keep going straight you’ll go to Wasilla, followed by Willow, Talkeetna, and eventually Denali and then Fairbanks. (If you’re really gung-ho, as I was, you can also keep driving to Prudhoe Bay, if you don’t mind 400 miles of dirt roads in the Arctic Circle.)
And as you can tell from the highway numbers 1 & 3, there aren’t many main roads in Alaska. :)