The Mazamas offers a variety of classes for all ability levels. Learn new skills in mountaineering, rock climbing, first aid, ski mountaineering, and more.
Sarah Bradham, Acting Executive Director
Sarah Bradham joined our staff in February of 2013. Sarah brings twenty years of experience in the nonprofit world to her work at the Mazamas, including extensive experience in nonprofit management, corporate relations, event management, database management, graphic design, communications, and marketing. Prior to the Mazamas, Sarah spent 14 years at Saturday Academy, 3 years at SageWalk, and a year at School-to-Work Alliance.
Sarah’s history with the Mazamas spans 16 years, beginning when she took the Basic Climbing Education Program (BCEP) in 2002 and fell in love with all the Mazamas had to offer. She jumped directly into committee work by joining the First Aid Committee in the fall of 2002, chairing the committee in 2004/2005, becoming a climb leader in 2007, being hired as the assistant Bulletin Editor in 2005, joining the Climb Committee in 2007, acting as assistant BCEP coordinator in 2008 and the BCEP Coordinator in 2009, and chairing the Education Committee from 2009–2011. Sarah was jointly awarded the Parker Cup in 2009 for her efforts to standardize the BCEP curriculum.
During her downtime, Sarah enjoys trail running, backpacking, and climbing. She also serves as the Board President for Girls on the Run of Portland Metro, a nonprofit organization designed to inspire girls to be joyful, healthy, and confident using a fun, experience-based curriculum which creatively integrates running.
Erica Stock, Development Director
As a lifelong outdoorswoman, mother, and conservationist, Erica is passionate about sharing a love for the outdoors with others and promoting the preservation of western rivers and landscapes. She brings 15+ years of experience as a fundraiser, policy analyst, and advocate in the nonprofit sector to her role as “chief fundraiser” for Mazamas.
After returning to Oregon three years ago Erica has worked with transitioning nonprofit organizations to build sustainable fundraising strategies, improve operational efficiency, and design impactful programs centered in equity and justice principles. In Colorado, Erica served as Outreach Director of Colorado Trout Unlimited, leveraging the grassroots power of the flyfishing community to protect the state’s public lands and rivers from natural resources development. She also supporting the implementation of the state’s pioneering Climate Action Plan and transition to a clean energy economy under the leadership of Governor Bill Ritter, Jr. As Western Major Gifts Director for American Rivers, she worked with philanthropists across the Western U.S. to increase investment in river and public lands conservation campaigns.
Born and raised in Michigan, Erica spent the majority of youth in and on the water sailing, swimming, and combing the Great Lakes for Petoskey stones. In her free time she enjoys trail running, mountain biking, nordic skiing, hiking, and paddling her way throughout the wild and scenic Pacific Northwest with her family. She holds degrees in social psychology and biology from Mount Holyoke College with additional post-graduate training in salmon ecology.
Justin Rotherham, Education & Activities Program Manager
Justin became a Mazama member in 2007. He became a climb leader in 2013, and has been actively engaged in program management, including with the Intermediate Climbing School. He served as Co-coordinator of Families Mountaineering 101 in 2015, and he has been the lead volunteer on our Leadership Development Project for the past two years. Justin's role includes management of our activity and education programs, working with partner organization on training standards, and implementing education goals tied to the Mazamas strategic plan, Mazamas2020.
Claire Nelson, Youth & Outreach Program Manager
Claire holds a Masters Degree from Portland State University in Leadership for Sustainability Education, and a BS in Environmental Studies from Oberlin College. She has focused her studies and work on incorporating social justice curriculum and equitable practices into environmental education.
Claire manages the Mazama Mountain Science School, Adventure WILD! Day Camp, Youth Outreach programming, and is spearheading diversity, equity, and inclusion initiatives at the Mazamas. Prior to the Mazamas, she worked as the West Coast Program Manager for Big City Mountaineers, Program Manager for Explore Austin, and as a certified climbing guide with KAF Adventures, Outward Bound, and Outpost Wilderness Adventures and holds an SPI certification from our friends at the American Mountain Guides Association.
Mathew Brock, Library & Historical Collections Manager
Mathew Brock joined our staff in February of 2015. Mathew holds a Master of Library and Information Science from the University of Washington and a Bachelors of Social Science from the University of Alaska Southeast. Mathew is overseeing a reinvigoration of the Library and Historical Collection with an eye towards building awareness, improving library usage, and storytelling. Mathew also manages a group of volunteers, produces articles for the Bulletin, and social media posts for both the Mazamas Facebook and Instagram pages. Since completing his MLIS in June of 2014, Mathew has been volunteering for the Oregon Historical Society. Currently, his is a co-organizer of the Portland Emerging Archivists group.
Mathew first climbed South Sister as a teenager. Later, while living in Alaska, he developed a love of hiking, backpacking, and rock climbing. More recently he completed BCEP in the Spring of 2016 and is getting back into rock climbing. Besides being outdoors, Mathew enjoys traveling, cooking, and building things.
Laura Burger, Development Coordinator
Laura Burger joined the Mazamas staff in April of 2015. Her responsibilities include grant writing, donor management, and customer service. Prior to joining Mazamas Laura worked in event and conference planning at University of Oregon and OHSU, special events and cellar work at Yamhill Valley Vineyards, and administration at West Coast Coffee Roasting Company.
When she’s not working Laura enjoys skiing, hiking, camping, yoga, reading, and running with her dog Molly.
Renee Fitzpatrick, Finance & Office Coordinator
Renee Fitzpatrick moved here recently from New York with six years of administrative and bookkeeping experience and is working on a master’s degree at George Fox University while she works at the Mazamas. Renee manages our accounts payable, accounts receivable, budgets, as well as general office duties including scheduling, maintenance, and more.
Kelsey Shaw, Member Services Administrator
Kelsey Shaw joined the Mazamas team in October of 2017. Kelsey oversees membership services with a focus on building and maintaining positive relationships with guests, members, and volunteers. Kelsey also contributes to the management of the member database, class and program registration, and provides administrative support for committees and other groups using the MMC. Kelsey is excited to be a friendly and competent resource for all that frequent the MMC. In her spare time Kelsey enjoys yoga, hiking, camping, traveling, and playing Futsal.
Molly Mosenthal, Youth Program Coordinator
Molly joined the Mazamas in March 2017 as the Adventure WILD Camp Manager. After a fun-filled summer of camp, she decided she didn't want to leave, and came on board as the Youth Programs Coordinator. She continues to manage Adventure WILD, coordinate the Mazama Mountain Science School, and work with our other youth programs. She comes to the Mazamas with a BA in Geography & the Environment and a BA in Spanish from the University of Denver. Molly has spent time adventuring, studying, and teaching environmental education across North and South America and Europe. In Colorado, she was Assistant Field Coordinator with Thorne Nature Experience before leaving the sunny Colorado Plateau for the not-so-sunny Northwest. Here in Portland, she worked with Community Energy Project as the Weatherization Community Educator. In her spare time, she enjoys skiing, hiking, swimming in chilly mountain waters, and letting the wind blow her in the direction of her next endeavor.
John Barkhausen, Education & Program Coordinator
John Barkhausen joined the Mazama staff in 2018 as the Education Programs Coordinator. His responsibilities cover all things education, including managing logistics, helping to curate curricula, scheduling teams and classes, training leaders, and helping to ensure we deliver effective, educational programs. He comes to the Mazamas after spending two years coaching high-schoolers in rock and ice climbing, three years as an assistant program manager of a guiding company based in Chicago, and many years of teaching skiing and avalanche safety throughout the country. John has a BA in Adventure Education and Wilderness Leadership from Prescott College, and is currently working on his master’s in Adventure Education from Prescott College. John enjoys climbing, skiing, climbing-up then skiing-down, hiking, cooking, and playing the guitar.
Maggie, Chief Morale Officer and High Commissioner for Tail Wagging
Maggie can often be found greeting visitors to the Mazama Library or wondering the MMC in search of pets, ear scratches, belly rubs. When not fulfilling her official duties, Maggie enjoys hiking, running on the beach, napping in the sun, and chasing squirrels out of the garden.
Quigley, Minister of Culture
Quigley likes to nap, get lots of belly rubs, and go on super muddy hikes. You can usually find him quietly napping in Sarah's office. He plans to climb South Sister this summer so he can become a Mazama!