The film shows thirty-eight of Heinz Emigholz's notebooks and sketchbooks from 1996 to 2004: cinematic studies of marble inlays on the memorial slabs in the Johannes Cathedral in Valetta, Malta in 2004; of Skull Rock in Joshua Tree Desert in California, which gave the series its title; of Cerro Castellan in Big Bend National Park in Texas; of a rock shop in Quartzsite, Arizona that sells remnants from the glass... see more