By sheer coincidence, today art21’s blog features a terrific Richard McCoy-penned Q&A with Dia staff conservator Francesca Esmay about Dia’s efforts to conserve Spiral Jetty (that is: Spiral Jetty the art work, (as opposed to Spiral Jetty the art-work-and-neighboring-ecosystem). The pictures are extra-cool. Don’t miss it.

Related: Examining the latest threat to Spiral Jetty.