Access is first come, first served until parking capacity is reached. No registration required.Adventure on horseback through Black Star Canyon, part of OC Parks’ Irvine Ranch Open Space. Trails will…

Access is first come, first served until parking capacity is reached. No registration required.Black Star Canyon, part of OC Parks’ Irvine Ranch Open Space, offers pleasant introductory trails for…

Below is a highlight video shown at the Medal of Valor Ceremony on April 16, 2026.  

IRC Volunteers are needed to support OC Parks’ managed Wilderness Access Day, a special event that provides the public with a rare opportunity to explore designated wilderness areas through a self-…

IRC Volunteers are needed to support OC Parks’ managed Wilderness Access Day, a special event that provides the public with a rare opportunity to explore designated wilderness areas through a self-…

Document CategoryFile Name / DescriptionUpdated Date LinkRegulatory & Permitting Integrated Pest Management (IPM) Plan – An IPM is a science-based, comprehensive framework focused on…

Join Mile Square Regional Park staff and volunteers in enhancing the park’s lake habitat for local wildlife. Activities may include removing trash, cleaning the lake, collecting fishing line and…

Enjoy a morning at Clark Regional Park and learn about ancient plants! Participants will visit the Interpretive Center, listen to a story, take a short walk in the park and make a craft. Activities…

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1. Annual Compliance Audits (Cal Govt. Code 27134)Engagement Letter Annual Compliance Audit June 30, 2023 (Issued Jul 22, 2024 and Signed Sept 4, 2024)Orange County Treasury Oversight Committee…