Land & Conservation Like Indiana Jones with a camera, the photographer and adventurer Stephen Alvarez descends into otherworldly caves to discover, illuminate, and preserve millennia-old drawings Stephen Alvarez inside the 19th Unnamed Cave. We’re walking in a wooded ravine, cold December sunlight soaking through the trees, when the mouth of the cave appears. It’s a sudden, gaping hole in the landscape, an invitation into another world that no curious mind could resist.