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The Fresnel lens inside the Point Reyes Lighthouse—whose glass prisms bend and refract light to create a powerful beam—will be restored during the landmark's first-ever major renovation, which started this week.   Teresa Mathew

The National Park Service on Monday began a $5 million restoration of the Point Reyes Lighthouse, the first extensive refurbishment in the landmark’s 148-year history. Work is expected to be completed next spring, but with access to the visitor center and observation deck opening again in  early October. 

Accessibility, said park spokesman John Dell’Osso, “is a big part of the project.” The pathway from the parking lot to the observation deck perched above the lighthouse…