Educated as an historian and cultural geographer at the University of Nevada, Reno, Mark has lived at Lake Tahoe since 1978. A popular lecturer, he
has entertained hundreds of groups, large and small, with dramatic stories, slide shows and field trips that illustrate Tahoe's unique cultural and environmental history.
Professional speaker and experienced field trip leader for educational Tahoe ecotourism activities, business groups, banquet presentations, and
Frequent guest and contributor on radio programs, documentaries, and regional and national television.
Expert consultant for several programs on The History Channel and The Weather Channel, including "God's Wrath: Snowbound" and "Epic Conditions"
filmed by Warren Miller Entertainment.
More than 650 articles published in regional and national publications such as Sierra Heritage, Wild West, Skiing Heritage, Nevada in the West, and Weatherwise. His work has also been published in the Reno News & Review, Issues in Science & Technology, and the Grolier Educational Science