Passive observation? GNP. Summer 2017 at Upper Grinnell Lake. Stromatolites. GNP. Summer 2017 at Upper Grinnell Lake, elevation 7,000′. The Stromatolites (the fossilized algae circles here) are about a billion years old. Observation is a great teacher, but only for a willing student.dad • • • • • This website is about our SPIRIT. To enjoy today’s post about our WORK, click here. If you want to stay on this site and read more posts from this Blog, click here. By jeff noel Retired Disney Institute Keynote Speaker and Prolific Blogger. Five daily, differently-themed personal blogs (about life's 5 big choices) on five interconnected sites. View all of jeff noel's posts.