For centuries, nobody outside the small mountain town of Monteverde, Costa Rica knew the Golden Toad existed. But then - at the height of its notoriety - it disappeared without a trace. Here are the maps, field notes, and photos from the scientists who knew the species best before it disappeared.

Photos by Martha L. Crump. Map by Jay M. Savage. Field notes by Martha L. Crump & Jay M. Savage. Reproduced with permission.

“7209” specimen photo by Trevor Ritland, from the University of Costa Rica archive room.