The Southwest Signal Trail

A widely witnessed series of unidentified lights over Arizona and Nevada on the night of March 13, 1997, including a large V-shaped formation seen by thousands across the Phoenix metro area — one of the most famous mass UFO sightings in US history.

Start beneath the flight path of the March 1997 Phoenix Lights, one of the most widely witnessed UFO events in American history.

A long-running roadside attraction and gift shop off Interstate 10 near Dragoon, Arizona, advertised by dozens of billboards leading up to it and built around a mysterious mummified figure on display inside.

Break up the desert drive at The Thing?, the billboard-fueled Interstate 10 attraction that has made mystery its business model for decades.

Debris recovered from a ranch north of Roswell in July 1947 prompted a same-day Army press release calling it a "flying disc," retracted within 24 hours in favor of a weather balloon — a reversal that fueled seven decades of UFO speculation.

Spend the night in Roswell and compare the Army's documented 1947 reversal with the mythology that grew around it.

An alleged secret underground facility purportedly hidden beneath Archuleta Mesa near Dulce, New Mexico, said by conspiracy theorists to house joint human-extraterrestrial operations.

End near Dulce and Archuleta Mesa. The alleged base is not a public attraction; respect tribal land, local residents, and all access restrictions.