Expedition Team

Our team is the key to your incredible experience


Let our expert staff weave a narrative on a Columbia and Snake River tour and, turn what would otherwise be merely a string of extraordinary days, into an immersive experience of the rivers’ natural history. Benefit from their specialized knowledge—geology, history, photography, and more—and enjoy their company on hikes or over a drink or dinner. 


Meet the expedition team for this departure

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  • Dave Katz

    Video Chronicler
    Dave grew up in a small town in the Finger Lakes region of New York and at an early age fell in love with the outdoors. After obtaining a bachelor’s degree in Geology, Dave set out to explore the world, working seasonally as a mountain guide and pursuing a growing interest in photography and storytelling. Since 2013, Dave has dedicated his time to working as a professional filmmaker. His work, projects and travels have drawn him to over 85 countries on six continents and his varied published work has appeared on television, in print and on the internet for clients such as Nat Geo Kids, PBS Nature and Outside Magazine.

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  • Grace Winer

    Naturalist
    Geologist and naturalist, Grace is a Montanan now living in Seattle. Grace received her degrees in geology (BS and MSc) from Montana State University. Funded by a grant from the National Geographic Society, she pursued her master’s degree in Alaska’s remote Pribilof Islands. Here she investigated the volcanic evolution of St. Paul Island, creating a geologic map, and predicting volcanic hazards in the event of a future eruption. Her knowledge of the Pribilof Islands and the Bering Sea region led to her work as a consulting geologist on St. George Island for NOAA’s Pribilof Restoration Project.

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  • Marylou Blakeslee

    Naturalist
    For the past 20 years, Marylou Blakeslee has traveled the world sharing her love of wild places. She lectures on a number of topics from the bears and wolves of the Arctic, to the leopard seals and whales of the Antarctic, as well as the turtles and fishes of the Great Barrier Reef.

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  • Michael Hanson

    National Geographic Photographer
    Michael Hanson is a travel and documentary photographer represented by National Geographic Creative. His images have appeared in National Geographic Traveler and National Geographic Adventure, and he is a frequent contributor to The New York Times and Outside Magazine. Michael began his photography career while playing professional baseball in the Atlanta Braves Organization, and in 2013, he was identified as one of the top 30 New and Emerging Photographers by Photo District News. Hanson later went on to create a Republic of Baseball series documenting the sport’s importance in the Caribbean nation of Dominican Republic, which was featured in The New York Times and earned Pictures of the Year International and Communication Arts awards in 2017. 

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  • Rich Kirchner

    Naturalist
    Rich Kirchner has worked as a naturalist in Antarctica, Alaska, the Bering Sea, Baja and the High Arctic, including Greenland, the Canadian Arctic and Iceland. His 25 years as a professional wildlife photographer has granted him international publication credits included in magazines such as Geo Germany, Geo France, Natural History, Audubon, National Wildlife and Ranger Rick, as well as more than a hundred books.

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