The Belo Horizonte to Acurui challenge is a 55 km (34 mile) route in the state of minas gerais that connects the capital Belo Horizonte to the colonial village of Acurui connecting old mining roads and part of the historic royal road that connects Minas Gerais to the Rio de Janeiro.
The crossing begins at the gas station of Retiro das Pedras in the Serra da Calçada region, a 15-minute drive from Belo Horizonte and travels along a dirt road for MBR mining areas for 25km to Rio Acima.

Big Island circumnavigation route from Hilo, a rite of passage route for Big Island ultra runners. Stay on main highways unless otherwise directed.

https://www.strava.com/routes/28205247
 

The Go Big 260 has a number of distances, including a 260 mile individual event. John Wright set the supported FKT during that event. Please check updated results before attempting to make sure there isn't a faster more recent time.