Staff / Board / Contact MCBC Team


Executive Director

Jim Elias | (415) 456-3469 x101

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Jim joined MCBC in July 2014. As Executive Director, he leads MCBC’s talented team and is responsible for guiding the organization as it grows and continues to make Marin a safe and fun place to ride a bike.

Prior to MCBC, Jim spent twenty years leading nonprofit land conservation efforts for groups ranging from regional land trusts to national organizations, including Trust for Public Land and American Land Conservancy. His projects succeeded in protecting tens of thousands of acres of open land throughout the West. Perhaps Jim’s greatest satisfaction though is taken from building organizations. He has extensive experience working with boards of directors and building community and corporate partnerships.

Jim loves all things bike. He rides almost daily, usually on the road, including commuting, and he sometimes wanders into the dirt. Way back when, Jim even owned a bike shop specializing in tandem bicycles.

Jim holds a Bachelor’s degree in Environmental Studies from the University of California, Santa Cruz and a Master’s in Urban Planning from the University of Oregon. Jim has lived in Mill Valley since 2002 and his three boys graduated from Tam High.


Policy and Planning Director

Bjorn Griepenburg | (415) 456-3469 x113

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Bjorn Griepenburg joined the Marin County Bicycle Coalition as Policy & Planning Director in July 2016. As Policy & Planning Director, Bjorn leads the MCBC’s Road Advocacy Program and is tasked with building the community and political support needed to create safe, legible bike facilities in Marin County.

Prior to joining MCBC, Bjorn spent a year in the San Francisco Municipal Transportation Agency’s Sustainable Streets Division. He holds a Bachelor’s Degree in Sociology from the University of California, Santa Barbara and a Master’s Degree in Community & Regional Planning from the University of Oregon. His graduate exit project focused on the importance of integrating bicycle networks with rail transit.

Bjorn is originally from Petaluma, where he currently serves on the Bicycle and Pedestrian Advisory Committee. His passion for transportation is driven by his desire to connect people of all ages, physical abilities, and income levels with their communities.


Off-Road and Events Director

Tom Boss | (415) 456-3469 x106

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Tom joined the Marin County Bicycle Coalition staff in April 2008 as Membership Director. He is founder and director of Film Night in the Park, is on the San Anselmo BPAC and on the Trails Committee of the Bay Area Ridge Trail Council. Tom is a founding member of the Marin Trail Stewards, a coalition of environmentally conscious trail users working to improve everyone’s outdoor experience. Tom also has many year’s of sales experience from managing such businesses as Seawood Photo in San Anselmo. He commutes to work every day on his 1928 Mead Ranger, and mountain bikes at least 3 days a week.


Membership and Volunteer Coordinator

Jess Willard | (415) 456-3469 x103

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Jess Willard – Membership and Volunteer Coordinator.


Communications Manager

Jim Edgar | (415) 456-3469 x107

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Jim Edgar has been riding the roads, trails, paths and byways of Marin county for the better part of his life. He’s seen the bike boom, the invention of the mountain bike and was present at the initial development meetings for the Marin County Bicycle Coalition. In his position as Communications Manager, he gets to combine two of his passions – cycling and writing. A recovering retail operations manager and successful voice actor, he has been working as an instructor with the Safe Routes to Schools Bike Rodeo program since 2013. His favorite ride starts and ends at his home, and involves the enticing mix of dirt and pavement which Marin provides – and is never the same route twice.


Safe Routes to Schools Program Director

Gwen Froh | (415) 456-3469 x104

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Gwen initially joined Safe Routes to Schools in 2008 to share her passion of cycling and theater. She co-created Pedal Power, an inspirational elementary school assembly, and GO GREEN, the middle school Assembly, both performed by students to encourage the use of green modes of transportation at schools throughout Marin. As a Teens Go Green Coordinator, Gwen works with students in Middle and High Schools to educate and empower school communities to take action to reduce carbon emissions and increase physical activity.

Prior to Gwen’s involvement with Safe Routes, she was the Business Manager and Co-Chair for the Ross Valley School District’s afterschool theater program, which provided professional theatrical training and performance opportunities for 500 students each year. Gwen transferred from Boston to the Bay Area 20 years ago as a west coast Regional Training Manager for a company providing computer education. Her professional experience has been enriched by a penchant for travel . She and her husband have collected memorable experiences from traveling throughout the world, such as riding an elephant to remote villages in Thailand, eating caviar for five days on the Trans Siberian Railroad, sleeping in a yurt in Mongolia, getting lost in the mazes in Morocco, and basking in the sun along crystal clear, aqua waters in Mongolia and Indonesia.

With all her travels, Gwen still feels that Marin County provides some of the most scenic beauty in the world, especially when on a mountain bike climbing Mt. Tam and White’s Hill. She lives in Fairfax with her husband and two teens who share her enthusiasm for Marin’s open spaces, trails and waterfalls.


Safe Routes to Schools Marketing and Outreach Manager

Laura Kelly | (415) 456-3469 x108

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Laura Kelly is passionate about creating a sustainable walking and biking culture in Marin County. She is the volunteer liaison for parent leadership teams at 45 elementary schools. Her role is to recruit, train and empower volunteers to promote green travel, as well as develop custom school plans and provide special events guidance. Laura collaborates with Principals, PTA presidents, town council members, law enforcement officials and student leadership groups to develop strategies that embrace the Safe Routes to Schools program. Her marketing responsibilities include writing blogs, educational brochures, volunteer training guides and newsletter articles. Additionally, she is the FaceBook Administrator.

Prior to Safe Routes to Schools, Laura worked as a senior account executive for public relations agencies in San Francisco and Boston. She obtained her Bachelor’s Degree in Marketing from the University of Massachusetts. She is a native of Lexington, Massachusetts, and looks forward to annual summer vacations visiting family in New England. Laura currently lives in Fairfax, California, with her husband, Patrick, and their two daughters, Meghan and Madison. Laura is an avid gardener and nature enthusiast. She immensely enjoys spending time with family and friends while camping, swimming, hiking and mountain biking.


Share the Road Program Manager (Road User Complaints and Adult Cycling Education)
Safe Routes to Schools Program Manager

Peggy Clark | (415) 456-3469 x102

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Peggy Clark is the Scheduling Coordinator for Safe Routes to Schools in Marin County. She has over 7 years facilitating experiential team building programs such as high ropes courses for youth and corporate clients across the United States. “I knew I found my calling the very first time I stood on top of a 40 foot pole while on belay and was instructed to just jump!” she said.

Peggy moved to San Francisco almost 20 years ago and her first investment was a mountain bike. Having just moved to California from Massachusetts she viewed her bike as the only practical way to get over the hills of San Francisco. As the fog rolled into San Francisco she quickly learned about the sun across the Golden Gate Bridge in Marin County.

In the mid 80’s Peggy worked for Club One Fitness as the Training Manager for the organizations quickly growing locations. During those years she rode her bike to work every day from Sausalito. “It was the perfect situation,”, she remarked. I had a least 8 showers to pick from once I arrived to work! Upon leaving Club One she joined Adventure Associates Inc. as a Program Coordinator. Along with her facilitation responsibilities she was the logistics manager for numerous, national training programs.

Peggy is married to Patrick LePelch, and they have a son Julian and a 13 year old dog Rubicon. They live in Mill Valley, CA. All four of them are avid cyclists. Peggy continues to ride a mountain bike so she can quickly access the bike paths and single track that are readily available in Mill Valley. In addition to cycling Peggy and her family enjoy sea kayaking, back-packing and going to the beach as much as possible.

“I learned a long time ago that my work must reflect my life values…cycling has been a passion of mine for many years. I am so excited to now be blending my passion, in my community with my professional organizational skills for SR2S”.


Safe Routes to Schools Instructor

James Sievert | (510) 301-6710

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“I find bicycle education to be a perfect blend of my two passions: bicycles and education!

“While attending Humboldt State I studied elementary education, worked at an after-school program and recently completed my California teaching credential. During these years my relationship with the bike blossomed.

“Currently I am a certified bike technician, ‘expert’ endurance mountain bike racer, car-free commuter since 2002, instructor for Marin SR2S, and author of bike blog ‘James Bikes Green.’

“Bikes are the obvious transportation alternative: good for you and good for the planet. Start seeing bicycles!”


Safe Routes to Schools- Teens Go Green Coordinator

Lou Goodwin | (415) 456-3469 x 109

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Lou’s position for Safe Routes to Schools is the “utility player”. She fills in at many positions and teaches groups of kids from grades 2nd through high school. Her main function is to organize clubs of teenagers to creatively promote green transportation to their peers. Lou says, “There’s nothing that compares to a teenager’s enthusiasm!”

Lou grew up riding her bike through the streets of Chicago but was destined to live in California. You’ll see her around town with her panniers full of groceries, or you’ll see her “way the heck out there” in the mountains around Fairfax. She and her husband have raised two kids that are off at college.

After spending thirteen years working in San Francisco on heart disease research, she’d rather work with the younger generation, preventing disease instead of rehabilitating. She holds a Master’s degree in Cardiac Rehabilitation specializing in stress management.


Safe Routes to Schools Bilingual Volunteer Coordinator

Monica Leifer

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Monica joined Safe Routes to School in 2014 as part of an effort to reach out to Hispanic families. She recruits, trains and encourages Spanish-speaking parents to participate. “It’s heartwarming to see the enthusiasm of these volunteers. They want their children to be fit and to stay safe. My job is to present Safe Routes in a way that makes cultural sense to this part of our community,” Monica said.

Monica’s goal? To share a conviction that everybody should take action to reduce their carbon footprint and increase physical activity.

Back in her native Colombia, Monica was an award-winning TV reporter and spokesperson for the Ministry of Finance. She came to the United States in 1998 to work with an international financial publication in Florida. Later, she was the spokesperson for the University of San Francisco. During her tenure at USF, she grew interested in green transportation and equally concerned about the effects of greenhouse gases. Currently, Monica and her family live in a house powered by the sun and they drive an electric car. Family biking is part of their daily lives.

“SR2S’s goal means so much to me: It makes kids and the planet healthier, all at the same time. What could be better than that?” Monica said.

Board of Directors

Mark Comin, President

Morris Beazley, Vice President

Julia Violich, Treasurer

Richard Petersen, Secretary

Steve Giondomenica

Chris Hobbs

Don Magdanz

Scott Penzarella

Francine Prophet

Eric Steinhofer

John Vipiana

Mail or Call us


733 Center Blvd.
Fairfax, CA 94930


(415) 456-3469

Want to Volunteer?

Contact our Membership and Volunteer Coordinator

Membership Status Inquiries?

Contact Jess Willard at (415) 456-3469 ext. 103

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Marin County Bicycle Coalition is a 501 (c) (3) non-profit organization