All types of geological illustrations qualify -- drawings, paintings, maps, charts, graphs, cross-sections, diagrams, etc., but not photographs. You might choose something because of its impact, its beauty, its humor, its clear message or perhaps because of a special role it played in your life. Let us know the reasons for your choice!
You can leave a link to your post as a Comment below, or if you don’t have a blog, a link to the illustration with an explanation. I’ll include everything in a roundup at the end of the month (deadline is February 29).
Geological illustrations currently on display at the
University of Wyoming Geology Museum.