CGA Centennial Series: 1965-74 100th anniversary, 1967 NCAA, 1967 PGA Championship, 1974 U.S. Open, Bob Byman, CGA Centennial Series, Colorado Golf Association, Columbine Country Club, Don January, Hale Irwin, Jack Nicklaus, Platte flood Columbine hosts PGA after flopping dates; Irwin bursts on national scene
