The Centenary Trail is a complete loop around Australia's capital city, through nature parks, reserves and urban areas. It is a marked trail maintained by the local government (https://www.environment.act.gov.au/).

This 20 mile route travels along the Appalachian Trail from the Dunnfield Creek parking lot to just past Crater Lake, where it descends down the Kittatiny ridge to Buttermilk Falls (or reverse). The route passes many New Jersey landmarks including Sunfish Pond and Catfish Fire Tower.

Traverse from Cochamó to Puelo Valley

This traverse is a historic route that connects the Cochamó with the Puelo Valley in Northern Patagonia in Chile.
The traverse is a 73k (45 miles) long trail on a difficult course with 3.449 mts. (11.314 ft.) of elevation gain.
 

Josh Grant describes the route (2WD access version, 50+km as described):

This is Death Valley's premier big loop route with so many reasons why:

1) It's a loop, no car shuttle issues. Titus Canyon is a GREAT run, super scenic, but the car shuttle can be onerous and there's no water until about the end.