County of Sonoma
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Upcoming events at Mark West Regional Park and Open Space Preserve

These programs and events will be held at Mark West Regional Park and Open Space Preserve.

Senior Saunter Picnic and Hike

August 4, 2026 | 10:00 am - 1:00 pm | Mark West Creek Regional Park and Preserve

Senior Saunters are low-impact, 2-mile walks with other seniors throughout Sonoma County.

Park Preview: Mark West

August 8, 2026 | 9:00 am - 2:00 pm | Mark West Creek Regional Park and Preserve

Explore one of Sonoma County's newest parklands before it opens to the public.