March 11, 1992 IT'S NOT EXACTLY A JOURNEY TO THE CENTER OF THE EARTH. BUT RIGHT HERE IN MISSION GORGE, MEN ARE GOING WHERE NO MAN HAS GONE BEFORE--TO THE HEART OF COWLES MOUNTAIN--AND OUT THE OTHER SIDE. NEWS 8'S CHRIS SAUNDERS TELLS US WHY THEY'RE GOING...AND HOW THEY'RE DOING IT... CBS 8 is the local source for San Diego breaking news and top story headlines. Get the latest local San Diego TV news, sports, weather and more. More from CBS 8: Website: https://www.cbs8.com Twitter: https://twitter.com/CBS8 Facebook: https://www.facebook.com/News8 Instagram: https://www.instagram.com/cbs8