Gabo Puma

(NOLS Patagonia Program Manager)

Originally from Venezuela, Gabo came to NOLS as a student in 2007. With ample experience in experiential education and leading groups into the outdoo…

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Gates Richards

(Wilderness Medicine Instructor)

Gates Richards has been involved in outdoor education and EMS since the early 90's. Over the years he's worked outdoor programming throughout the Roc…

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Gene R. Tremblay

(Chair Emeritus)

Gene went to Mount Everest in 1994 as a sponsor of the Sagarmatha Expedition with NOLS instructors Scott Fisher and Steve Goryl. He has a bachelor…

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Geoff Irons

(Wilderness Emergency Medical Technician)

Geoff “retired” after a 26-year Army career to the small town of Woodland Park so he and his wife could “enjoy climbing and skiing the beautiful moun…

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George Phipps

(Board Treasurer)

George Phipps is Vice Chairman at Bessemer Trust Company and Bessemer Securities LLC. During 2022 he retired from Jasper Ridge Partners where he c…

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Ginna Irwin

(Wilderness First Responder)

Ginna loves the outdoors, education, and medicine- and is excited to incorporate all three while working for NOLS Wilderness Medicine. Ginna graduate…

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Graham Prather

(Wilderness Emergency Medical Technician)

Graham spent his formative years primarily on the East Coast but most recently drove the wagon west from the snowy mountains of New Hampshire and now…

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Grayson Dill

(Wilderness Medicine Instructor)

Born in the NC Mountains, Grayson grew up outside of Charlotte, NC. After attending UNC, he spent some time in Washington D.C., living abroad, and at…

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Gregory M. Avis

(Trustee Emeritus)

Greg is managing partner of Bangtail Partners, a private investment firm with a focus on impact investing. He is a co- founder and former managing…

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Gretchen Herbert

(Former Advisory Council)

Gretchen retired from the U.S. Navy in 2014, after 30 years of service. During her career, she worked in Anti-Submarine Warfare, Satellite Communi…

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Gretchen Warner

(Board Member)

Gretchen Warner is the Head of School at the Overlake School in Redmond, WA, and an Affiliate Consultant at Mission & Data.

Gretchen has been t…

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Griffin Myers

(Board Member)

Griffin R. Myers, M.D., M.B.A., F.A.C.E.P.

Dr. Griffin R. Myers is a Co-founder and Chief Medical Officer at Oak Street Health, (NYSE: OSH), a ne…

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