Al Trippel – The Geology of Cook County Minnesota: Oceans, Volcanoes, and Glaciers, Oh My!
Al Trippel lives in Grand Marais and Minneapolis-St. Paul, Minnesota. He grew up around rocks in the Midwest and the Western US. From a childhood hobby to a high school job, to a career in mining, and now a passion during retirement (actually it's “refirement”), rocks continue to awe and inspire. Much of his lapidary and jewelry-making utilizes rocks and minerals found along the way.