America's Voice for a Greater Yellowstone!

Greater Yellowstone Coalition
215 S. Wallace Ave.
Bozeman, MT 59715
(406) 586-1593
(406) 556-2839 fax

Greater Yellowstone Coalition
60 E. Little Ave. Suite 201
Driggs, ID 83422
(208) 354-1593

Greater Yellowstone Coalition
P.O. Box 4857
Jackson, WY 83001
(307) 734-0633

1285 Sheridan Ave.
Suite 245
Cody, WY 82414
(307) 527-6233



Caroline Byrd
Executive Director

Caroline Byrd comes to the Greater Yellowstone Coalition with a rich history in conservation and outdoor work throughout the West, including 14 years with The Nature Conservancy in Montana and Colorado. As Western Montana program director for The Nature Conservancy in Missoula, she worked on the Montana Legacy Project and the Blackfoot Community Project — two landscape-scale conservation efforts in which the Conservancy purchased and protected about 400,000 acres of Plum Creek Timber lands in and around the Crown of the Continent region. Before her tenure in Missoula, Caroline was TNC’s Southwest Colorado program manager in Telluride, Colo. Prior to her time with TNC, she was a staff attorney and the Greater Yellowstone program director for the Wyoming Outdoor Council in Lander. Also in Lander, for many years she led National Outdoor Leadership School courses in leadership and outdoor skills in the Rocky Mountains, Southwest deserts, North Cascades, Canada, Alaska and East Africa. She also directed Earlham College’s Kenya program as well as the school’s Southwest Field Semester. Caroline has served on the boards of the Blackfoot Challenge and High Country News.  She also worked seasonally for the Forest Service as a wilderness ranger and trail crew in Wyoming and Alaska. She has several mountaineering highpoints to her name, including being the first woman to climb the Northwest Buttress of Denali and as a member of the first American women’s expedition to climb an 8,000-meter peak (Cho Oyu) without oxygen or Sherpa support. Throughout her career, Caroline has worked with a wide array of partners and communities to come to long-term conservation solutions. She has an undergraduate degree in environmental studies and anthropology from the University of California-Santa Cruz, a master’s degree in environmental studies from the University of Montana, and a law degree from the University of Montana School of Law.

Scott Christensen
Director of Conservation

Scott joined GYC in 2003 after graduating from the University of Utah and working on several political and environmental campaigns in Salt Lake City, Utah. Since then, Scott has led efforts to protect some of the region’s most important private lands, restore degraded rivers and streams, and recover the imperiled cutthroat trout population at Yellowstone Lake. In 2010, Scott launched a climate change program at GYC, focusing on science-based climate change adaptation strategies throughout Greater Yellowstone and leading a collaborative project in the Madison Valley to boost instream flows and cool water temperatures.

In 2013, Scott was named conservation director and charged with managing GYC’s conservation program and its staff.  Named a “Hero of Conservation” by Field and Stream Magazine for his work to protect watersheds from phosphate mining, Scott has a portfolio of conservation successes throughout Greater Yellowstone. Scott is passionate about working with people to protect Greater Yellowstone’s spectacular lands, waters and wildlife, both in region and beyond.

As a long time whitewater enthusiast, climber, and fishing bum, Scott enjoys exploring Greater Yellowstone’s wild places with his four children and wife, Celia.

Majken Mechling
Director of Operations and Development

Majken brings over 30 years of non-profit management and successful fundraising experience to her position as Director of Operations and Development.

A seasoned professional, Majken brings a proven track record of management practice including; board recruitment and development, strategic planning, corporate recruitment, community networking, public relations and marketing, personnel management, fiscal and budgetary management, fundraising and fund development.

Majken was born and raised on the shores of Cape May, New Jersey. Ensuring the beauty of the beaches, ocean, land and wildlife was and continues to be a priority for her family. During her father’s tenure of service as Mayor, Cape May was designated a national historic landmark, forever preserving the beauty, lifestyle and natural environment for generations to come. 

Majken received her education from the Sisters of Mercy at Georgian Court University in Lakewood, New Jersey and spent over 25 years of her career managing not for profit organizations in the Hawaiian Islands. Majken is a member of the Association of Fundraising Professionals.

She and her husband Steve’s greatest joy is raising their son Cameron along with Sandy, their 90 pound lab mix, and Gracie, their gray tabby cat.


Peter Bennett
Information Systems Manager

Peter has over 25 years of professional experience in the computer field. He is familiar with many types of computer systems and networks. His supporting role for the GYC staff enables the staff to work more efficiently and securely. In addition to his computer expertise, Peter also has a master’s degree in Mental Health Counseling from Montana State University.

Peter grew up near the woods in Virginia.  His family loved to take nature walks and explore the outdoors. He spent the last two years of high school at a private school in Colorado where backpacking and skiing were required parts of the curriculum.  Montana State University was next and Peter has lived in Montana ever since.  He built a log cabin in the mountains south of Big Timber and has climbed many of the peaks in the Absaroka Beartooth Wilderness. Upon moving back to Bozeman, Peter became involved in a local grass roots group that lobbied to raise the money for the Forest Service to purchase four sections of land owned by a timber company and saved them from logging.

Peter is happily married to Robin, a holistic health practitioner. They enjoy organic heirloom gardening, hikes in the mountains, photography and rock collecting together. They have raised their three daughters to continue their passion for nature to the next generation.

Barb Cestero
Montana Conservation Coordinator

Barb joined the Greater Yellowstone Coalition in December, 2004 as our Community Outreach Director and now serves as our Montana Conservation Coordinator, working primarily to protect and restore the public lands of southwest Montana.

Barb's interest in conservation work grows from her deep connection to the wild lands of Greater Yellowstone.  She first moved to Greater Yellowstone in 1989, landing in Wyoming where she taught wilderness education to college students, outdoor educators, and land managers for the National Outdoor Leadership School throughout the Rocky Mountains and Alaska.  At NOLS, Barb was fortunate to explore many of the remote corners of Greater Yellowstone.  She moved to Bozeman in 1998 to work for the Sonoran Institute’s Northern Rockies office, working with rural communities throughout the region on collaborative, community-based conservation projects.

An avid wilderness lover, Barb continues to travel and explore the backcountry of Greater Yellowstone, Alaska, southern Utah, and the wilds of other countries. She especially enjoys backcountry and Nordic skiing, hiking, mountain biking, running in her spare time, usually with her dog Pepper.

Chris Colligan
Wildlife Program Coordinator

Chris is GYC's Wildlife Program Coordinator, based out of Jackson. He works to strengthen and maintain the conservation of the Greater Yellowstone Ecosytem’s iconic wildlife. Chris is responsible for implementing a broad range of strategies to influence state management of wildlife in Wyoming, Montana and Idaho with a focus on grizzly bears and wolves. He works to ensure a balanced and science based approach to wildlife management in the ecosystem, and on increasing public awareness and tolerance for wildlife in Greater Yellowstone.

Prior to the GYC, Chris worked on another contentious issue for Wyoming as the Wyoming Game and Fish Departments Brucellosis Information and Education Specialist in Jackson. That position gave him knowledge of the diverse stakeholders involved with public land issues in northwest Wyoming and increased his interest in working on divisive issues that require a passion for wildlife conservation.

Chris grew up near Grand Rapids, Michigan and attended Lake Superior State University in Sault Ste. Marie, where he received a bachelors degree in Fisheries and Wildlife Management and minored in Public Relations. He worked for the Illinois Natural History Survey, shortly after college, researching hunter opinions and attitudes towards wildlife management. Chris left the Midwest for the recreational opportunities available in the Greater Yellowstone Ecosystem. Here he pursues his outdoor interests, which include hiking and trail-running, hunting, fly-fishing, snowboarding, and mountaineering.

Jenny DeSarro
Wyoming Conservation Associate

Jenny spent her early years on the upper south fork of the Shoshone River with the Washakie Wilderness as her extended backyard.  As a teenager, her family moved to Montana, giving her the opportunity to explore the Absaroka-Beartooth Wilderness.  Since then, Jenny has traveled into many backcountry areas and ecosystems across the west.

After receiving a B.S. in Environmental Studies from Utah State University in Logan, Jenny launched a career in developing and implementing outdoor and environmental education programming in Colorado.  Over the years she has worked for City of Lakewood’s Bear Creek Lake Park, Colorado Mountain Club, Denver Botanic Gardens, Ken-Caryl Ranch Ranger District, Science Kids, and Stokes Nature Center.  Then, Jenny obtained a graduate degree in Interdisciplinary Studies from Lesley University which included studies abroad in Turkey and Italy.  Her career and studies continue to evolve as she strives for synergistic solutions benefitting cultural and natural environments.

Jenny is an avid outdoors woman and naturalist.  She enjoys spending time with her husband and their black lab, Max.

Abi Devan
Development Associate

Growing up near the coast in Northern California, the oceans were far more familiar to Abi than the mountains. But after family trips to places like Yellowstone, Yosemite, and even Tibet, he became obsessed and found every excuse to spend time hiking, skiing, and exploring the backcountry in the Sierra Mountain Range in California. Abi eventually moved to Seattle, Washington for graduate school and soon found himself leading trips up the glaciers of Mount Rainier and the North Cascades.

After spending three years living at the foothills of the Wind River Range in Wyoming, Abi moved north to Bozeman, Montana and joined the Greater Yellowstone Coalition as a Development Associate in July 2014 supporting their fundraising strategy and events locally, regionally, and nationally.

He comes to GYC with over five years' experience at various nonprofit organizations. Prior to joining GYC, Abi worked as a Stewardship Coordinator and Field Instructor for the National Outdoor Leadership School (NOLS) in Lander, Wyoming. He has also worked for Unitus, a nonprofit organization dedicated to reducing global poverty through economic empowerment. In addition to his work experience, he volunteered his time to help run the 3 Summits for Nepal fundraising climbs in the Pacific Northwest.

Abi holds an MBA from the University of Washington and a BA in Film Production from Loyola Marymount University. He currently serves on the board of the Palayam Foundation, a family foundation which supports initiatives that promote education in India’s underserved communities. Abi is grateful to live and work in a place with amazing wildlife and such great access to wilderness. He loves to explore the vast ecosystem of Greater Yellowstone with his wife, Alexandra, and his dog, Kuma-San.

Charles Wolf Drimal
River Conservation Associate

 After serving as a wild lands conservation advocate for GYC’s Absaroka-Beartooth Front campaign in Cody, Wyoming, Charles migrated north to Bozeman and now works as the river conservation associate. He is responsible for the development and implementation of a river conservation campaign aimed at securing permanent protection for key rivers in southwest Montana.

Before joining GYC, Charles co-founded the Absaroka Institute in 2009, a non-profit educational organization that runs wilderness meditation and yoga expeditions throughout the American West. Charles also co-founded the Montana Backcountry Alliance in 2005, which supports the voices of backcountry skiers and riders looking to protect opportunities for quiet human-powered winter recreation. For over a decade he has guided people in wild land settings in Wyoming, Montana, southeast Utah, Alaska and Patagonia with organizations such as the National Outdoor Leadership School. As an adjunct professor, Charles also taught Wilderness Ideology and First Year Seminars in Critical Thinking at Montana State University.

Charles holds an undergraduate and two graduate degrees in Environmental Studies and Ecopsychology from Dartmouth College, the University of Montana and Naropa University. He believes in the power of connecting people to landscapes and teaching ecological literacy as a path to human health and sound stewardship practices. Charles is a backcountry skier, mountain wanderer, and father. He is grateful to call the mountains and rivers of the Greater Yellowstone Ecosystem home.

Terry Dumont
Executive Office Manager

Terry first worked as a graphic designer when she moved to Bozeman in 1991 from Oregon and graduated from Montana State University with a degree in studio arts. She joined the Greater Yellowstone Coalition staff in 1997, committed to its mission.

For Terry, Yellowstone National Park has everything to do with family. Her son, Taylor, (2006 graduate of Bozeman High School) and Terry have been sharing adventures in the park since he was three. The magic of the park, its landscape and wildlife, have provided cherished memories and valuable experiences, molding their values and inspiring them to protect this place they call home.

Shana Dunkley
Wildlife Program Associate

Shana joined the Greater Yellowstone Coalition in January 2015 as our Wildlife Program Associate, working to protect the Greater Yellowstone Ecosystem’s iconic wildlife. Shana advocates for a balanced and science-based approach to wildlife management, working to ensure priority species such as grizzly bears, bison, and wolves thrive in the Greater Yellowstone.  

A wildlife biologist by training, Shana brings over a decade’s experience conducting wildlife research in Greater Yellowstone through various state and federal agencies and institutions on nearly all of Yellowstone’s iconic large mammals, including wolves, grizzly bears, wolverines, bison and elk.  From this work she gained a great appreciation for the complexities of wildlife controversies in the GYE, and the need for a practical, science-based approach to resolve conflicts and conserve the area’s outstanding resources.
Shana graduated from the University of Utah in 2001 with a B.S. in Environmental Studies with an emphasis in Wildlife Ecology. Since then she has lived and worked in the Greater Yellowstone Ecosystem for well over a decade on various wildlife conservation projects. She graduated with a Masters of Science degree from the Department of Ecology at Montana State University in 2011, studying wolf-ungulate dynamics in Yellowstone National Park. In conjunction with her graduate research, she worked for more than 8 years, including three years as project leader, studying wolf, grizzly bear, elk, and bison dynamics as part of the Integrated Ecological Science Program in Central Yellowstone. One of the primary objectives of Yellowstone’s longest study on large mammal ecology was to contribute applied research to help resolve complex and controversial management and conservation issues throughout Greater Yellowstone. Prior to and following her graduate work, she worked with numerous agencies and nonprofits on wildlife projects throughout Greater Yellowstone as well as elsewhere in the Northern Rocky Mountains, Alaska, and Africa, focusing on a wide range of controversial issues including disease management, threatened and endangered species, human-wildlife conflict, hunting, predator restoration, energy development, and recreational impacts on wildlife.
With a strong connection to Yellowstone’s wildlife and its people, Shana is passionate about finding practical solutions to mitigate human-wildlife conflict. As an avid outdoors person, she is most happy in the backcountry on her horse, skis, or running the trails with her border collie Bidou and blue heeler Paco. Shana is grateful to call the Greater Yellowstone home.

Joe Josephson
Montana Conservation Associate

Joe Josephson was born and raised in Big Timber, Montana and grew up in the Beartooth Mountains. Joe works as our Montana Conservation Associate focusing on the Gallatin Range collaboration; bringing diverse interests together for long-term solutions that protect the range’s extraordinary wilderness and wildlife values while also improving quiet recreational opportunities.

After graduating the University of Calgary, Joe lived in Alberta for over a decade as a professional ice climber and writer returning home to Montana in 1998 as a sales rep for the clothing company Patagonia.

Prior to joining GYC in February 2013, Joe has also worked as an award-winning author and guidebook publisher, Exum mountain guide, French cook, founder of a 501c3 “Friends of Hyalite,” and most recently as the Yellowstone Wildlife Fellow for National Parks Conservation Association.Since 2006 he has directed the Bozeman Ice Climbing Festival every December, which is now one of the largest climbing festivals globally.

Joe currently resides leaning on the wind in a 19th century home in Livingston with two cats and an unruly raspberry patch.

Dylan LeBlanc
Development Associate

Dylan joined Greater Yellowstone Coalition in October 2014 as a member of the Development team. He brings a successful track record in development, sales, marketing, entrepreneurship, and the financial and IT industries. He also has a long history of volunteering and currently enjoys working with several local and national non-profits. He is charged with supporting GYC’s development and marketing strategy, including donor cultivation and fundraising events, on a local, regional and national level.

Born and raised in Texas, Dylan spent much of his spare time as a youth camping, fishing, hunting, or simply playing in the woods that surrounded his home. These early experiences instilled a love for the outdoors that still grows today. Upon completing college at the University of Texas in Austin, Dylan rode his bike from Texas to Alaska in one of the world’s longest annual charity rides. The experience only heightened his appreciation for our nation’s wild places, and was ultimately a major driving force behind his decision to move north to Montana in the winter of 2012.

Dylan feels incredibly fortunate to have the Greater Yellowstone Ecosystem in his backyard. An avid runner, biker, climber, and skier, you’ll find Dylan outside most days of the week, enjoying all that Bozeman and the region have to offer.

Kathy Rinaldi
Idaho Conservation Coordinator

Kathy joined GYC in June 2014 as our new Idaho Conservation Coordinator.

Along with her role as conservation coordinator, she is finishing her second term as a Teton County Commissioner. As a county commissioner she has helped lead a community effort to create a new (post boom) comprehensive plan that focused on sustainability and won awards for public outreach. She also led a process to develop the county’s first economic development strategy that focused on sustainability, conservation and economic growth.

She was appointed by Gov. Otter in 2012 to serve on Idaho’s Roadless Commission and is an Advisory Board Member of Smart Growth America’s Local Leadership Council and former Board Member of Idaho Smart Growth.

Previously, Kathy was the Executive Director of Valley Advocates for Responsible Development (VARD), and advocated for the responsible development and sustainable use of the natural resources in Teton Valley, ID. She also worked as the Education and Outreach Director for the Jackson Hole Conservation Alliance.

Kathy has an undergraduate degree in geography from Illinois State University and graduate work in Conservation Social Science from the University of Idaho, where she researched the No Deje Rastro/Leave No Trace program in Mexico. Kathy is a former Peace Corps Volunteer and a National Outdoor Leadership School (NOLS) Instructor. Kathy and her husband co-own Yostmark Mountain Equipment and Yostmark Backcountry Tours, a retail and backcountry guiding businesses in Driggs, ID.

Julie Webb
Finance Associate

Julie joined the GYC staff in July of 2014 as the Finance Associate.  She holds a Bachelor’s Degree in Accounting from Southern Utah University and has spent the majority of her career in Northern Nevada.

As a fairly new resident to the Bozeman area, Julie enjoys discovering all that Bozeman has to offer whether it be a downtown hot spot or a back country road. In her free time she enjoys spending time with friends, songwriting, and hanging out with her German Shepherd Cash and her three horses.  

Christi Weber
Development and Marketing Coordinator

Christi Weber is the Greater Yellowstone Coalition’s Development and Marketing Coordinator. She came to GYC in May 2008 after more than a decade of working in communications, marketing and fundraising in both the public and private sectors. She is charged with leading the development team to build awareness and raise funds for GYC both regionally and across the nation. Her wealth of experience includes fundraising, donor relations and stewardship, communications, marketing, event planning, and public and corporate relations.

As a native Idahoan, she has a deep appreciation for the outdoors and is enamored with all wildlife. She is a sports enthusiast and is usually up for trying anything once.

Christi, along with her husband Doug, son Miles, and dog Jessi enjoy spending time hiking, camping, and exploring new places. She loves languages and hopes to visit all 7 continents in her lifetime.

Bob Zimmer
Water Program Coordinator

Bob brings over 25 years of experience as a resource planning, conservation and restoration consultant to his role as Water Program Coordinator. He came to Montana in 2005 in part to help restore cold water habitats of the northern rockies and in part to live and play in the Yellowstone region.

Bob was raised by adventurous parents in southwest Colorado and has experienced first hand how important resource conservation is to the livelihood of communities and for the full enjoyment of recreational opportunities.

He enjoys working with local, state and federal stakeholders to provide innovative approaches for resource management and land use that will protect and preserve our valued natural resources for generations to come. In his spare time Bob and his wife, Meg, can be found chasing their kids and yellow lab in some variation of hiking, biking, floating or sliding on snow. 

Consultants & Contractors

Donna Lawson
Grants & Foundations Independent Contractor

Donna assists GYC by applying her expertise in the areas of non-profit development and administration, grant writing and other facets of fund development, board development and governance, strategic planning, marketing, community development, and volunteer recruitment/retention. Donna has nearly 35 years of experience with non-profit organizations. Her background includes serving as Regional Director for developing, supporting, and overseeing close to eighty affiliates for a national non-profit.

Having been born and raised in Florida, Donna’s love of the natural world and its inhabitants developed after the death of her husband in 2002, when the wilds of the Great Smoky Mountains in North Carolina and Tennessee became her solace. When her previous employment territory expanded to include Bozeman and other parts of Montana, she was given the opportunity to visit Yellowstone National Park for the first time.  She was enchanted by the land and wildlife and has returned each year since. In her travels, she has also explored Alaska, Colorado, Oregon, Washington, Wyoming, Idaho, Maine, and all states in the Southeast.    

An accomplished photographer, Donna is happiest when on a trail or otherwise exploring and capturing the wilderness with her camera.  She is excited to be able to merge her personal passion with her professional life, to help preserve and protect the Greater Yellowstone Ecosystem now and for future generations.

Jeanne-Marie Souvigney
Bison Independent Contractor

Jeanne-Marie assists GYC staff in its efforts to provide Yellowstone bison the opportunity and habitat to move freely on appropriate public and private lands outside Yellowstone National Park.  She continues work she first started as staff with GYC in 1990, bringing a wealth of history and knowledge to the issue.

A resident of Livingston, Montana, since 1985, Jeanne-Marie has a master’s degree in Environmental Studies and a bachelor’s degree in Quantitative Methods.  She was a volunteer and firefighter with the Bitterroot National Forest for two years, worked as an organizer on mining and family farm issues in Eastern Montana and advocates in support of healthy rivers and clean water, and for action on climate change and clean energy.  She is a co-founder of Montana Conservation Voters and has been a regular presence at the Montana legislature since 1981.

Jeanne-Marie is passionate about Yellowstone National Park, the value of community parks and trail systems and likes to travel, hike, camp and raft throughout Montana and the Rocky Mountain region.