U.S. DARPA - Teams will test concepts for exploring underground in Subterranean integration exercise

Nine teams will test technologies aimed at revolutionizing how first responders and warfighters operate in the underground domain; exercise will take place at Colorado’s Edgar Experimental Mine in April.
In early April 2019, nine qualified teams will attempt to remotely navigate the dark and dirty corridors of Edgar Experimental Mine in Idaho Springs, Colorado, in preparation for the Circuits Stage of the DARPA Subterranean (SubT) Challenge later this year  (Picture source: DARPA)