Who We Are



Neil Davis, Director– is a registered nurse. He has worked in the Emergency Department and ICU and served in a Director role both at Ukiah Valley Medical Center and Mendocino Community Clinics. In addition to his duties as Director for Walk & Bike Mendocino, Mr Davis is the part time Director for the Ukiah Valley Trail Group and consults as a Public Health Nurse for Round Valley Community Health Center.

Field Coordinator

Roland (Rolo) Spence – Laytonville Field Coordinator. Rolo has been with Laytonville Healthy Start since 2007, when he was initially hired to take high school students on trips to the Willits Skate Park as a way to keep at-risk youth engaged in healthy activities. Since then, he has become a great asset to the organization. Between his youthful personality, artistic abilities and dedication to his community, Roland is able to bring a creative and exciting flair to most any situation. Kids love him, which is perfect for his position working as a mentor. Aside from his efforts at Healthy Start and Laytonville schools, he always seems to be involved in some sort of lofty endeavor. He is the founder and president of the Long Valley Skaters’ Association, an organization created to build and maintain a skate park in Laytonville. When he isn’t doing artwork as a graphic designer, he can be found working on his house with his lovely fiancé or skateboarding his heart out somewhere in the sun.

Field Coordinator

Maureen began her career as an employee for the County of Mendocino and now a small business owner raising children in the town of Ukiah, she is dedicated to giving back. Maureen has experience in volunteering, working within the county and owning a small business. While wanting to create a healthy lifestyle for her children and her community, Mo saw that Walk & Bike Mendocino would be a great place to collaborate.

Field Coordinator -Fort Bragg

Harley Nunan –  has a Master’s degree in Sports Science & Health and Bachelor’s in Nutrition & Health.

She grew up in Denmark where walking and biking for transportation is the norm. “It’s just second nature to me to walk and bike most places,” she says.  “I’m very excited to be part of a great team of like minded people!” 

     In addition to being a Field Coordinator at Walk and Bike, Harley is a competitive runner and triathlete and works as a personal trainer, coach and nutritionist.

Lead Traffic Safety Educator

Erich Sommer, Lead Bicycle Safety Trainer – Erich walks, bikes and lives in Ukiah. In addition to his part-time role with W&B Mendo, Erich works as an environmental educator at the Redwood Valley Outdoor Education Project. Erich attended Humboldt State University and graduated with a Bachelor of Arts in Geography. He is a League of American Bicyclist’s Certified Instructor (LCI) in traffic skills and general bike safety, and has attended and helped co- teach the League’s Traffic Skills 101 class. Erich has also assisted in putting on several bike rodeos. He is excited about the potential for increased pedestrian and bike use in and around Ukiah and Mendocino County. He spends much of his time chasing around his son ( 4 years old), walking his dogs and riding his bikes as much as possible.

Field Coordinator

Joshua Landers, Field Coordinator, is also an English instructor at Mendocino College. Originally from San Diego, he’s always been an outdoor enthusiast–surfing, bodyboarding, biking, and skateboarding. He is currently a member of the Mendocino Rugby Club, a published fiction writer, a husband, and a father to two children. He graduated from the University of Arkansas with a M.F.A. in Creative Writing, and continues to write while being as active in the community as possible, spending time with his family, and exploring the world.

Advisory Board

Tarney Sheldon (Ukiah) – is a credentialed K-8th grade teacher. She coordinates the Nutrition Basics program as a member of NCO’s Community Action team. Tarney connects with family resource centers and agencies across Mendocino County to support their nutrition education efforts. She develops and presents classroom nutrition lessons that connect families to the food grown in local school, community, and backyard gardens.

Jed Diamond (Willits)  -is a health-care practitioner with a Ph.D. in International Health. He is co-founder of the Willits Healthy Action Team (WHAT) whose goal is to improve the physical, emotional, and spiritual health of the community.  They sponsor large community walks in May and October.

Holly Madrigal (Willits) -was raised in Willits, and returned to the area in 2000 with her husband, Gabe, after graduating with a degree in Business Management and Economics from the University of California, Santa Cruz. Madrigal serves on numerous boards and community organizations, including the coordinating committee of Willits Economic Localization (WELL), Willits Shop Local First, the Economic Development and Finance Corporation (EDFC), and Common Wealth Community Farm at Howard Hospital. She currently serves on the Willits City Council and is a former mayor. She also is an alternate on the Mendocino Council of Governments.

Mary Anne Landis (Ukiah) – came to this community to teach. She taught for many years as part of the Mendocino County Office of Education after which she founded and directed a charter school.  Then she designed and built a small infill housing project on the west side of Ukiah which piqued her interest in planning and development issues. Her subsequent work as Ukiah Planning Commissioner lead her to serving as a Ukiah City council member for the past 5 years -one of those years as mayor. Mary Anne retains a strong commitment to focusing on shared community values, so we can ‘grow’ this beautiful place on the planet – without wrecking it. She thoroughly enjoys being part of the changes which result in the creation of a more liveable, walkable, bikeable – and prosperous community.

Marvin Trotter (Ukiah) –is a Hospitalist and ED Physician with Pacific Redwood Medical Group. He is the former Medical Director of the Mendocino County Public Health Department. He was the driving force in creating the Alex Rorabaugh Community Center. He is a passionate community organizer who takes crazy, impossible ideas and makes them happen.

Linda Helland (Ukiah) – Linda studied Land Use and Environmental Planning at UC Davis Extension, and obtained a master’s degree in public health at San Jose State University. She strives to create community policies and environments that provide everyday opportunities for physical activity and access to healthy foods for all. Linda loves bicycle commuting and eating home-grown basil, tomato and mozzarella salads on the porch in the summer.