Sign In | View Cart | | Help | Search Home Print Course information Email me when offered Return to Course Catalog Course Catalog Geology of Mount Rainier Mount Rainier--Washington's most visible peak. We start 840,000 years ago when "The Mountain" first erupted and follow its growth to its present form. Learn why it is the most dangerous mountain in North America. Handouts provided. Please note that courses can be found under the sub-category of the following headers: Adult Family Home Arts Computer Enrichment Fitness Food and Wine Home and Garden Language Professional Some Title Alert