Field guide index
San Mateo Creek
Explore san mateo creek through our San Diego field notes. Find practical guides, coastal context and links to the official information you need before heading out.

San Mateo / San Onofre county-line area
Panhe Nature Trail: San Mateo Creek and San Onofre Guide
Near the county line, this trail area connects a coastal watershed with a living Indigenous cultural landscape. Verify the exact route before heading out.
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San Onofre / San Clemente
Beach Plants California Guide: San Onofre's Coast
Learn to observe California beach plants at San Onofre, from coastal scrub to creekside vegetation, while respecting trails and closures.
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San Onofre / San Clemente county-line coast
Trails State Beach: A Guide to San Onofre
San Onofre is several distinct coastal experiences, not one interchangeable beach entrance. Choose Trails, Surf Beach or Trestles before setting off.
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San Onofre / San Clemente
Trestle Beach California: A Guide to Trestles Beach Trail
Find Trestles Beach near San Clemente, compare trail access and parking, and plan a careful walk to this San Onofre surf coast.
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