Twin Peaks Christian Conference Center was built in the early 1960’s. It was originally a Resort/Conference Center named "The Monte Corona", which hosted conferences, workshops, seminars, and training programs for the LA Teachers Association. It was sold to the California Teachers Association and with its great design and unique mountain appeal, it continued as a perfect retreat, seminar, and training center. Calvary Chapel of Costa Mesa bought the center from the Teachers Association in 1975 for use as a Bible College and Conference Center. From 1970 to the mid-1980’s, God abundantly blessed its use to spread the gospel, bless the body of Christ, and train up servants for the Kingdom of God. Twenty years later, both the Conference Center and the Bible College were bursting at the seams and it became apparent that God's desire was to move both ministries to a larger facility. Soon, a large facility was purchased in Murrieta Hot Springs, California, and God again blessed His people as "Murrieta Hot Springs Christian Conference Center" opened its doors. In the fall of 1996, the Bible College moved from Twin Peaks to the new facility and Twin Peaks seemed quiet and still. In 1997, the Twin Peaks facilities were reopened as a retreat center. For over three years it continued hosting retreats for adults and youth overflowing from the youth camp in Green Valley Lake. By the end of the 1990’s, Twin Peaks Christian Conference Center was in need of many repairs. In 2000, a massive remodel project began. On August 17, 2001, the doors of the newly renovated Twin Peaks Christian Conference Center were reopened. A sign at the front office in the lobby read: "Welcome to Calvary Chapel Conference Center Twin Peaks. With God all things are possible".