Trans-Taiga Road (2004)

Intersting! I know that in the contiguous USA, you will never be more than 20 miles from a road no matter where you are, but have no idea how far one can drive from a town.

This story is about a road in Canada. I doubt the 20 mile thing holds in remote parts of Alaska.

Updated my comment because you're right, I meant contiguous USA.

And I'm aware it's about Canada, which is why I said "I wonder what the answer to this same question is for the USA". :)

You probably want contiguous rather than continental. Continental does include Alaska but not Hawaii or US territories.

You're right, and I edited my comment accordingly, but I asked Google and got this interesting AI response, so I guess a lot of people on the internet make the same mistake, since AI just echos its training data:

The term "Continental United States" (CONUS) generally refers to the 48 contiguous states plus the District of Columbia, excluding Alaska and Hawaii. It encompasses the landmass of the United States located on the North American continent. While sometimes confused with the "contiguous United States," which also refers to the 48 states, "continental" specifically emphasizes the geographical location on the continent.