Popular Geology Index
for scientists, non-scientists, teachers, students

Guided Educational Tours Geology, Mining, and Cultural History of Butte and Southwest Montana

Perpetual Calendar, History of the Earth (a 366-page book)

Mineralogy of Kidney Stones Interesting Oil Statistics • Speaker's Bureau Basics of Gravity & Magnetics Some of Dick Gibson's Trip Reports have some geology in them.

Miscellaneous Products

Perpetual Calendar History of the Earth Geological Clip Art Antique Geologic Maps and Photos

The background image is an agate in Dick Gibson's collection. ©2000 Richard I. Gibson