[jeffbee]

Well, go right ahead and name any place that is, say, fifty miles from a road.

[rcpt]

https://www.washingtonpost.com/news/wonk/wp/2018/02/20/using...

https://www.bbc.com/news/world-us-canada-42104894

The best one can do is 21 miles from a road - in Yellowstone

[petepete]

I just had a go and thought I'd found somewhere with a 60km road-free radius, then zoomed out and found that I'd strayed into Mexico.

Sugar bunker, just NW of Las Vegas has a few places with 50km (~30 miles) though.