Mark’s love for travel began in high school when he spent a summer playing soccer in Europe against European teams. While at Butler University, he spent a semester studying literature in London and a summer studying Spanish in Mexico. At Columbia, Mark studied Educational Psychology, provided therapy at a high school in Spanish Harlem, and spent a summer serving schools in rural Costa Rica. For 17 years, Mark worked as a high school psychologist in Jackson Hole, Wyoming, where he still runs a private practice. He also served as the assistant alpine ski race coach (winning 16 state championships!) and a faculty sponsor of the school mountaineering club. For years, Mark has supported student climbs up peaks such as the Grand Teton and Devil’s Tower, has extensive experience leading student backpacking trips in the Tetons and Appalachians, and is generally most comfortable living out of a tent at high altitude. Mark is pursuing his Ph.D. in psychology at UC Berkeley and researching positive psychology, hope, and resilience in youth. Mark is an avid backcountry skier, mountain biker, backpacker, fly-fisherman, photographer, white-water rafter, and adventure traveler when not writing research. Mark has worked and traveled extensively on six of the seven continents. He has led Putney Service programs in Costa Rica, Ecuador, Ghana, and a program in Peru. Mark has co-created and led additional service projects in Ghana and Tanzania. This will be Mark’s eighth trip leading high school students abroad and his fifth student trip to Africa. Mark is fluent in Spanish and is CPR and First Aid certified.