Planet Underground -- Located in Manteno, Illinois, Planet Underground is the epicenter of subsurface damage prevention in the US. Whether it's Underground Focus, the magazine that's been exclusively dedicated to this topic since 1986, Staking University, a hands-on training institute for utility locating professionals, DigBig, the annual indoor/outdoor event in Manteno that physically exposes attendees to all manner of equipment and technology, or World of Training, a new magazine designed to explain how locating technologies and practices work in easy-to-understand terms, Planet Underground provides a comprehensive range of resources to all players in the damage prevention game.