About Observation Post #4 Laguna Guerrero Negro, Baja California, Mexico A Gray Whale Nursery: Fewer whales come here than to Laguna Ojo de Liebre. Guerrero Negro means "Black Warrior." It is named after a whaling ship that went down in this lagoon in 1858. The world's largest salt production facility is located on this lagoon. The saltworks offices are in the nearby town of Guerrero Negro. Photo: Keith "Baja" Jones   Students from Guerrero Negro examine a whale bone sent by students in Nelson Lagoon, Alaska.     Laguna Guerrero Negro, Baja California (27.97N, -114.03W)