Support WBURDecades-Old Mystery Put To Rest: Why Are There X's In The Desert?Play05:31Download AudioDanny HajekOctober 11, 2016 SharePez Owen was joyriding in her Cessna airplane when she first spotted a giant X etched in the desert. "It's not on the [flight] chart. There just wasn't any indication of this huge cross," she says. (Pez Owen)
![Pez Owen was joyriding in her Cessna airplane when she first spotted a giant X etched in the desert. "It's not on the [flight] chart. There just wasn't any indication of this huge cross," she says. (Pez Owen)](https://media.npr.org/assets/img/2016/10/04/x2-4b6c5cbbd3f3d790ba3e7e2e9884587fadd82d99.jpg?s=2600)