The 5th annual Solar Rock, an outdoor, solar-powered concert will take place on Sunday, March 27, at Armory Park from 11am - 4pm.  The concert is 100% powered by solar panels and is open to the public.  Tucson citizens concerned about the state of the environment can attend and learn more about the power of the sun from educational displays, renowned scientists and vendors.  Come join TFS as we enjoy the sun, music and fun!  For more information, please visit the Solar Rock web page.  This year, the Solar Rock will coincide with Cyclovia!