2013 “The Wayfinders: Why Ancient Wisdom Matters in the Modern World”, Climate, Mind and Behavior (CMB) Symposium, Garrison Institute, Garrison, NY, June 9-10, 2013.

2013 National Geographic, 125th Anniversary Gala: Celebrating a New Age of Exploration, National Building Museum, Washington DC, June 13, 2013

2013 “The Wayfinders: Why Ancient Wisdom Matters in the Modern World”, Shapers of Place Workshop, Kitselas Canyon National Historic Site, BC, June 15, 2013.

2013 Keynote Address, “The Sacred Headwaters: The Fight to Save the Stikine, Skeena and Nass”, British Columbia Museum Association, R.E.M. Lee Theatre, Terrace, BC June 15, 2013.

2013 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” Annual Board Dinner, The Bowers Museum, Los Angeles, June 18, 2013

2013 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” “The Wayfinders: Why Ancient Wisdom Matters in the Modern World”, “The Sacred Headwaters: The Fight to Save the Stikine, Skeena and Nass”, “River Notes: A Human and Natural History of the Colorado” Canadian Mountain Holidays, Bugaboo Lodge, July 21-24, 2013.

2013 Guiding, Spatsizi, Collingwoods, August 7-15, 2013

2013 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” Sun Valley Writers' Conference. Sun Valley, Idaho, August 22-26.

2013 National Geographic Expeditions: Celebrating 125 Years of Exploration with National Geographic: The Canadian Maritimes. Cape Breton Island, St-Pierre and Miquelion, St. John’s, L’Anse aux Meadows, Gros Morne, Iles de la Madeleine. September 7-14, 2013.

2013 National Geographic Expeditions: South America: Jungle Rivers, Rain Forests and the Colonial Coast. Trinidad, Orinoco Delta, Guyana, Suriname, Devil’s Island, Amazon Delta, Fernando do Noronha, Salvador, Illhéus, Abrolhos, Rio de Janeiro, September 18- October 16, 2013.

2013 National Geographic Expeditions: Celebrating 125 Years of Exploration with National Geographic: A Journey by Private Jet. United Kingdom, Oman, Bhutan, Palau, Laos, Maldives, Botswana, Rwanda, Spain October 23- November 15, 2013.

2013 Keynote Address, Alberta Teacher’s Science Council, Edmonton AB, November 16, 2013.

2013 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” “The Wayfinders: Why Ancient Wisdom Matters in the Modern World”, Ogden School Foundation Annual Fall Author Event, Ogden, UT November 20-21, 2013

2013 “The Wayfinders: Why Ancient Wisdom Matters in the Modern World”, Colorado College, Colorado Springs, November 25, 2013

2014 “The Sacred Headwaters: The Fight to Save the Stikine, Skeena and Nass”, Conservation Alliance Breakfast, Salt Lake City, January 22-23, 2014.

2014 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” “El Río” Hay Festival Cartegena de Indias, Colombia, January 29-February 2, 2014

2014 Keynote Address: The University of Denver 3rd Annual Public Lecture Series, April 15th, 2014.

2014 Keynote Address: Alfred Russell Wallace Centennial Celebration, UCLA, Los Angeles, CA, April 2014.

2014 “Into the Silence: The Great War, Mallory and the Conquest of Everest,” Sharjah Book Fair, Sharjah, UAE, November 15, 2014.