Methane outgassing is a known issue within the Shoreline Amphitheatre itself! It's built on a former dump. During the earliest events there in the 1980s, conce

Methane outgassing is a known issue within the Shoreline Amphitheatre itself! It's built on a former dump. During the earliest events there in the 1980s, concertgoers seated on the lawn set it afire when trying to smoke! (And, yes, it's misnamed. It's a theatre, not an amphitheatre.) There are EPA Superfund sites all over the valley. One of the worst was across the street from the Ice Center and Spartan Stadium.