Glassmire, a geologist, had been hired to prospect for gold in Mosquitia and went looking for the lost city instead. He led three prospecting expeditions into Mosquitia in the late 1950s. A tough, weather-beaten man with a gravelly, slow-talking, New Mexico drawl, Glassmire had built a career as a respected scientist who had worked as an engineer for Los Alamos National Laboratory in the mid-fifties, when Los Alamos was still a closed city. He grew disenchanted with making nuclear bombs, so he moved to Santa Fe and set up a geological consulting firm.
