The 40th annual RTMC Astronomy Expo will take place on Friday, May 23 through Monday, May 26, 2008 (Memorial Day weekend). It will be held at YMCA Camp Oakes, five miles southeast of Big Bear City, California on State Route 38 at Lake Williams Road between mileposts 44 and 45. This location is about 50 miles northeast of Riverside in the San Bernardino mountains.