[rident]

Nice list! Noticed a few decent US hiking trails that aren't on it though. There are tons more of course, especially if you include BDR stuff.

Ice age trail - https://www.iceagetrail.org

Superior hiking trail - https://superiorhiking.org/

John Muir trail - https://www.johnmuirtrail.org/

Long trail - https://www.greenmountainclub.org/the-long-trail/

Pacific Crest trail - https://www.pcta.org/

Hayduke trail - http://www.hayduketrail.org/

Arizona trail - https://aztrail.org/

[paul7986]

Adding my two favorite adventure hikes (hike into caves, up ladders, to waterfalls, rock scramble, etc..not just a trail through the woods)...

Old Rag Mountain (Shenadoah, VA) https://home.nps.gov/places/old-rag.htm

and

The Mohonk Labrynth Trail (Catskills, NY.. so much fun hiking in caves, up ladders, etc) https://www.mohonk.com/a-day-at-mohonk/hiking/

[LorenPechtel]

This site is about long distance trails--things that take weeks or months to complete, not stuff like your Old Rag for which every listed hike is in day-hike range. I don't see trail distances on your second link but once again it appears to be day-hiking.

Considering the US ones on that list--there are people that have managed to do all three in one year, albeit with some flip-flopping. There are more of them than there are moonwalkers.....still living.

[ghaff]

Among those, the Ice Age trail is only about half-complete. The whole thing can be walked but you'll be doing about 500 miles on roads.

[JKCalhoun]

PCT is on the site (now anyway, in case it was recently edited).