Executive, Development & Marketing

Markian Feduschak


Markian is focused on leadership development, effective team building, staff training, and risk management. He loves spending time outdoors with his wife and two daughters.  Meet Markian >

Doug Dusenberry

Director of Major and Planned Gifts

Doug joined Walking Mountains in the summer of 2006 to manage and administer all aspects of the school’s Capital Campaign.  Today he manages all major & planned gifts.  Meet Doug >

Nancy Shane

Annual Gifts Officer

Nancy's main responsibilities include securing gifts from individual donors, managing our direct mail efforts, and securing corporate underwriting and sponsorships.
Meet Nancy >

Gina Garrett

Education Grants Officer and Special Events Coordinator

Gina joined Walking Mountains in 2007 as Youth Programs Director. She now is a part of the Development Team, seeking out and writing education grants to support both Youth and Community Programs.  Meet Gina >

Youth Programs

Theresa O’Halloran


Originally for southern California, Theresa grew up exploring the Pacific coast and Santa Monica Mountains. She left the ocean for the mountains to study geography and sociology at the University of Colorado.  Meet Theresa >

David Broomfield

Graduate Fellow

David is an outdoor educator at heart. Since attending multiple science and art camps as a child he followed his passion to the other side and began teaching and mentoring in similar programs.  Meet David >

Whitney Miller

Graduate Educator

Originally hailing from the Northern California coast, Whitney grew up on a diet of salt air and redwood forests. As a young tyke, she explored tidal pools, built forts in oak trees, and meandered along Montana rivers.  Meet Whitney >

Erin Park

Graduate Fellow

Erin was born and raised in the mountains outside of Jackson Hole, Wyoming. It was here that her love for the natural world and science was first ignited. Meet Erin >

Nicole Abrams

Avon In-school Teacher and Girls in Science Coordinator

Nicole is a self-proclaimed tree hugger who first joined Walking Mountains as a summer educator to hug trees with kids at camp! Meet Nicole >

Katie Nuessly

STEM Coordinator

Katie teaches middle school students in the STEM Leadership Academy challenging science, technology, engineering, and math topics through hands-on experiments and activities. Meet Katie >

Jaymee Squires

Graduate Programs Director

Jaymee heads up graduate studies at Walking Mountains, she is a whiz with edible plants and enjoys reading, hiking, camping, canoeing and being outside. Meet Jaymee >

Rose Delles

Youth Programs Coordinator

Rose assists with writing curriculum, teaching in the field, and supporting the Youth Programs team. Rose enjoys exploring her own hobbies hiking, biking, and tele-skiing.  Meet Rose >

Beth Garrison

Youth Programs Director

Beth oversees all school programs and summer camps and supervises Walking Mountains' graduate fellow educators.  She can often be found on the slopes or outside with her dog Tucker.  Meet Beth >

Community Programs

Lara Carlson

Community Programs Director

Lara oversees Community Programs happening on-site at Walking Mountains and with our partner organizations.  She has been with Walking Mountains in various roles since our inception as Gore Range Natural Science School!  Meet Lara >

Hannah Irwin

Community Programs Coordinator

Hannah is a self-proclaimed nature nerd hailing from Michigan, where she developed her love of water and all things outdoors.  You will often see her at the Vail Nature Center... Meet Hannah >

Sustainability and Stewardship Programs

Kim Langmaid

Vice President and Director of Sustainability and Stewardship Programs

Something.  Meet Kim >

Melissa Kirr

Sustainability Programs Coordinator

Melissa has a passion for the environment and loves sharing it through the efforts of Walking Mountains. She has lived in Colorado’s Central Rocky Mountains for over 10 years.  Meet Melissa >

John-Ryan Lockman

Energy Programs Manager

John-Ryan is a certified BPI Building Analyst and has been working with the regional Energy Smart Colorado team since 2011. He loves music &  spending time outdoors.
Meet John-Ryan >

Brad Davis

Energy Programs Coordinator

Brad handles the administrative aspects of the Energy Smart program and acts as an energy coach for homeowners and businesses.  He is an avid outdoor enthusiast!
Meet Brad >

Peter Wadden, Field Research Educator
Pete Wadden

Field Research Educator

Pete loves to spend time exploring the wilds of Colorado. In his free time he can be found trying to keep up with his dog Wiley using any means available (skis, bike, kayak, raft, etc).  Meet Pete >