Unido: 23.feb.2020 Última actividad: 23.oct.2022 iNaturalist
Professor Emeritus, Earth Science, UCSB
Retired Registered Geologist, State of California
FAA Certified Unmanned Remote Aircraft Pilot
Author: "Roadside Geology of Southern California" and
"Geology Underfoot in Southern California"
great_pumpkin no está siguiendo a nadie