Mike Teague Science & TechnologyExploration & Discovery Mike Teague: biographical notes Mike Teague is connected with Geocaching — May 3, 2000. Related books ‹ › Book covers from Open Library. As an Amazon Associate I earn from qualifying purchases. Advertisement Related on thisDay Geocaching — May 3, 2000Dave Ulmer sparks a global phenomenon in 2000, hiding the first geocache in Portland, Oregon, with over 3 million active caches today Sources and further reading Use the dated article for the day-specific account; use these references to check the event record and explore its wider historical context. Date article: Geocaching — May 3, 2000Wikipedia source