Also some of the best night sky in the country, and some areas are eerily still and quiet.
> In the stretch of highway between Fallon and Delta, Utah, a span of 409 miles (658 km), there are three small towns: Austin, Eureka, and Ely. This span is roughly the same distance as Boston, Massachusetts, to Baltimore, Maryland, or Paris, France, to Zürich, Switzerland.
Also known as the "Loneliest Road in America".
Eyre Highway runs east from Norseman in Western Australia for 1,200 kilometres (750 mi) across the Nullarbor Plain to Ceduna, South Australia.
It then crosses the top of the Eyre Peninsula as it continues eastwards for 470 kilometres (290 mi), before reaching Port Augusta.
https://en.wikipedia.org/wiki/Eyre_HighwayThe Kolyma Highway (aka Road of Bones) runs through over 2000 km of basically nothing, including the coldest place on Earth outside Antarctica.
https://en.wikipedia.org/wiki/R504_Kolyma_Highway
And they're building another 2300 km:
A) East of the Appalachian Mtns
B) Appalachians to Mississippi River
C) Mississippi to Rockies
D) Rockies to Pacific
Of those, (C) is one or two orders of magnitude more remote than the others.
On the east coast, it's hard to be more than 30 minutes from a Starbucks. In South Dakota, it's easy to be 2.5 hours from the nearest one.
Broadly speaking, you have the Northeast Corridor, which is more or less a continuous conurbation from DC to Boston.
Outside of that, the Eastern US generally follows European models of density, with clear densely-populated urban regions (Chicago being the largest city, but more minor cities like Indianapolis or Dayton correspond well to minor urban centers in European countries, population wise), in a field of rural areas where there's basically a quantum of civilization anywhere the land is flat enough to actually support it. There's kind of omnipresent human presence in the rural areas of, say, Ohio (not unlike rural Netherlands, say), while the mountainous regions like West Virginia sees strips of small towns nestled in every river valley while the ridgelines are largely empty (like a lot of the Alps).
The boundary between rural-but-populated and rural-but-unpopulated in the US is not so much the Mississippi River, but the 100°W longitude line, the High Plains (or roughly a line running from Oklahoma City through Wichita and Omaha up to Winnipeg along I-29 and I-35). From here, there's basically nothing until you hit the Front Range and the beginning of the mountains.
Once you hit the Front Range and you look west, you're in a kind of combination of the previous two zones. There's again large urban centers. In some of the big valleys--Columbia, Snake, Central, and Willamette--you see basically a small slice of European-style omnipresent human presence in rural areas. But outside of these areas, the area is largely thoroughly unpopulated, more so than even the High Plains, due to either being a desert, mountainous, or both.
It really is a feat of engineering when you think about it that highways were built and maintained over such vast distances and through some really inhospitable terrain. When driving that road I sometimes ponder what it was like building it.
Highlights included going down the Tanami Track in a rental van during the wet season, taking nothing but a case of beer onto the 2000km 4wd-only Canning Stock Route[0] and getting bogged then rescued by a passing convoy, and walking down a seriously remote track for six hours with nothing but a day pack and a change of clothes then asking where "the next kiosk" was.
We were from a more built up area of Australia, so we had a good idea of what it was like in the really remote parts and prepared: two spare tires, spare bits and pieces like timing belts and radiator hoses, HF radio and an epirb, redundant water containers, checked in with the local police station to let them know our expected arrival dates, all the good stuff. It was still very strange being in a part of the world where people would stop if they saw you pulled over but not waving or signalling to them, because you might be in trouble and they knew there'd only be one or two cars a day. We were from an area of Australia where if you had a compass and followed any direction for a day or two on foot you'd eventually come to a road, but out there you could drive for a day and not see anything.
[0] The longest stock route in the world, and probably one of the worst roads in Australia, insofar as you can call it a road.
"Where are you from" I respond with something mid-western. "How far from New York or LA is that?" "I can drive a day in any direction and still be in the middle of nowhere".
It was cute to see the confused looks on everyones faces. I get it though, you drive a couple hours in any direction in Europe and you are likely to be in another country or a body of water.