There are still some enduring mysteries in Death Valley. One of them is the 1834 Rocks. These puzzling inscriptions, found at three sites and separated by a wide distance, each bear a unique combination of symbols: a date, a cross, and a chalice, with an enigmatic "SP" monogram at all three.

Keen to investigate, I met up with noted Death Valley expert Matt Jones on a couple of hikes to visit the 1834 Rocks. As we explored, Matt shared stories of fellow researchers working to unravel the secrets behind these symbols.