The primary objective of the expedition in March 13 will be to explore Sump 4 in J2, establish subterranean Camp 5 in the airfilled tunnels beyond, and extend exploration toward the hypothesized central trunk corridor inside the Sierra Juárez
The primary objective of the expedition in March 13 will be to explore Sump 4 in J2, establish subterranean Camp 5 in the airfilled tunnels beyond, and extend exploration toward the hypothesized central trunk corridor inside the Sierra Juárez