Staff Bios

Diane Poslosky, Executive Director (diane@etctrips.org)
Diane Poslosky has served as ETC's Executive Director for 27 years. Diane has taught environmental education for three decades, was an elementary school teacher, and supervised conservation work and education for high school students. She received the California State Teacher Association’s Gold Award for excellence in Education and a Jefferson Award in 2009. Diane holds a B.A. in Environmental Studies and a Multiple Subjects Teaching Credential from California State University, Sonoma. Under Diane’s leadership, ETC was awarded the San Francisco Foundation’s John R. May Award for nonprofit excellence and creativity. She has grown ETC from a home-grown great idea to a nationally recognized pioneer in accessible outdoor adventure programming. At times, Diane can be found on the river or with a pack on her back, but her main focus is supporting the programs’ staff and helping with the development of the programs’ curricula.

Maureen O'Hagan, Associate Director (maureen@etctrips.org)
Maureen “Mo” O’Hagan is excited to join ETC as its first Associate Director. She hopes her blend of 12+ years of experience in the outdoor recreation industry combined with her 8 years as a public high school science teacher will be the right mix to help further ETC’s mission. Maureen has been the supervisor of both UC Santa Barbara and UC Santa Cruz’s outdoor recreation programs, is a professional whitewater raft guide, and has taught wilderness medicine courses for WMI/NOLS. As a teacher, she has won awards from the California Legislature Assembly for her contribution to education and from her PTSA for outstanding service. She holds a B.S. in Geography and a B.A. in Environmental Science from UC Santa Barbara as well as a master’s degree in Education and California Clear Teaching Credentials for Biology, Geoscience and Health Science.

Davido Crow, River Program Manager (riverprogram@etctrips.org)
Davido is an accomplished guide in all of ETC's programs as well as role model for our Youth Leadership Program — he began as a participant in ETC's first Youth Leadership School in 1990. From 1995-98, he served as ETC’s Assistant Area Manager and Live-In Trip Leader. In 1999, Davido served as ETC's Field Coordinator. In 1998-1999 he ran ETC’s Youth Leadership School and Winter Cross-Country Skiing Program. He is now the River Program Manager for the river program. He has 13 years’ experience working with the outdoor industry and with special populations. He is certified as a Wilderness First Responder, and has been trained and involved in swift water rescue for many years. He holds a B.A. in sociology from the University of California, Santa Cruz, with a focus in social Psychology and an interest in communication and leadership.

Cheyenne Berry, Youth LEAD Program Manager (ylp@etctrips.org)
A long-time sea kayak guide, Cheyenne joined ETC in 2004 as a Youth Leadership Instructor. In 2005, she accepted a full-time position managing both our winter and Youth Leadership Programs. Cheyenne expanded the Youth LEAD program to include a school-year fellowship and in 2007 became ETC’s first full-time Youth Leadership Program Manager. A ball of energy, Cheyenne is a surfer, kayaker and climber. She has her BA in Recreation from San Francisco State University.

Lissie Kretsch, Winter Program Manager (winter@etctrips.org)
Lissie Kretsch joined the ETC community as a winter intern in 2005 after studying Environmental Politics at the University of Maryland. As an avid telemark skier and lover of all things mountain, she was pulled from her east coast roots to California and the ETC mission. She came back to ETC as the Winter Program Manager in 2010 after teaching with Yosemite Institute and guiding summer wilderness programs for four years. In the summers, she works as a ranger in Yosemite and brings her love of snow, education, loud laughter and adventures to the winter program.

Allison Maffei
(kayak@etctrips.org)
Allison began her ETC journey as an intern with the Sea Kayak Program in 2003 while finishing a degree in Recreation and Nonprofit Administration at San Francisco State University. Already an avid river lover, she leapt at the chance to live at ETCs river camp for the summer as a Trip Leader, and later a Program Associate. In 2007 she came full circle, and is enjoying time on the bay once again as the Sea Kayak Program Manager. In addition to her ETC experience Allison is also a seasoned outdoor educator, a swift-water rescue instructor with the American Canoe Association, and she teaches Wilderness First Aid through the Wilderness Medicine Institute. Allison has become as enamored with the California coast as she is with river canyons, and she now spends her free time zipping around San Francisco Bay in her sailboat.

Mia MacHatton
(officemanager@etctrips.org)
Mia MacHatton joined ETC as Office Manager in 2008. She has worked in many worlds, including comic book publishing, journalism, web copywriting, and restaurant ownership. She received her BA in Psychology from Pomona College in 2003.