We have posted up a bunch of geology tales, on the Loop and elsewhere in our boating travels in North America, on our website: http://cruisingamerica-halcyondays.com/ Scroll down on the index page to Chapter 15 on the lower right side. Drop a line on this site or our email, we have posted on our website, if you have any questions, corrections, suggestions. Bill (one of the geologists on this site)