The Master Development Plan was approved in 2004 after several years of environmental studies and revisions. The plan calls for the addition of six new chairlifts, a year round tram from base to summit, new lodging, an on-mountain restaurant, and additional service and maintenance facilities. The implementation of the approved plan began the summer of 2007 with the addition of the Northway chairlift. The most recent addition was the $6 million dollar Mt. Rainier Gondola which was installed during the summer of 2010. A new waster-water treatment plant was installed the summer of 2012 paving the way for a new hotel and additional base area infrastructure.