Another of the changing exhibits was "The Primal Desert Next Door: Land of Black Volcanoes and White Sands," which opened February 26, 2011 and closed in January 2013. Much of the Sonoran Desert lies south of the Arizona border in Mexico. This vast expanse and its diverse wildlife is the focus of this exhibition, which included wall murals depicting the vast contrasting dark “moon-scape” volcanic fields and bright seas of sand dunes. Visitors were able to learn about the geology, flora, and fauna of this region though photographs and interactive components. The exhibition was based on the book "Land of Black Volcanoes and White Sands, The Pinacate and Gran Desierto De Altar Biosphere Reserve", by Larry Marshall and Clark Blake. Interactive features included a dune machine, which replicated the phenomena of sand dunes, a hands-on basin and range topography display, and a mock lava tube, which children could climb through. This exhibition has since been replaced. For all current and future exhibitions, please visit http://www.azmnh.org