The Center for Green Urbanism Tubman-Mahan Gallery is a proud partner of the Washington Area Cached Artifact System (WACAS).

July 30, 2012 – January 31, 2013

WACAS is a network of objects found throughout the District of Columbia.  Individuals are invited to participate in the system through the exploratory discovery, locating, and viewing of these objects.  More information can be found at wacas.net.