Admin Staff

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Susan Johnson

Associate Director The EDGE and Outdoor Adventures

As an Adjunct Faculty member with the Mason School of Recreation, Health, and Tourism, Susan teaches several classes focused on leadership and outdoor education.  A BS in Recreation and Leisure Studies and a MS in Recreation and Parks were earned from Penn State University.  A Master Gardener, Susan incorporates the element of environmental sustainability into her landscape designs.  She enjoys hiking, cycling, birding and exploring the outdoors.

Telephone: 703-993-3761

Dave Heath

Assistant Director

Dave has led outdoor education and team building programming for more than 25 years, over 20 of those years at Mason. He earned a BA in journalism and French from Indiana University and an MFA in creative writing from Mason. In addition to supporting The EDGE’s awesome facilitator team, he teaches an outdoor education course for the Mason School of Recreation, Health, and Tourism. In 1996 he hiked the Appalachian Trail from Georgia to Maine.

Telephone:  703-993-9826

Sue Czarnetzky

Sales Account Manager

Diverse experience in management, sales/marketing and customer service enabled a transition from the corporate world to an opportunity to spend 15 years in a field about which she has become passionate.  The theater, a good mystery book, the scent of the sea, bluegrass, country and Celtic music and both foreign/domestic travel provide pleasure.  She is a published writer in the area of spirituality.

Telephone: 703-993-4313

Dan Nellis

Facilities Manager

Dan earned a degree in sociology from Indiana Wesleyan University. His experience with Mason as a Challenge Course facility supervisor spans 28 years.  His previous outdoor experience as a youth counselor/teacher at an alternative school and a Philmont Scout Ranch staff member offer our facilitators insight into various client populations.  Dan is a creative and talented wood worker whose contributions enhance The EDGE challenge course.

Telephone: 571-241-7838

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