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When Drakes Estero, which lies within the Point Reyes National Seashore (PRNS) about 25 miles northwest of San Francisco, California, was designated by Congress in 1976 as Potential Wilderness, it contained a commercial shellfish mariculture operation. Oyster mariculture began in Drakes Estero with the introduction of the nonnative Pacific oyster in 1932, and has been conducted continuously from that date forward. Hence, the cultural history of oyster farming predates the designation of Point Reyes as a National Seashore in 1962. Nevertheless, with the approach of the 2012 expiration date of the current National Park Service (NPS) Reservation of Use and Occupancy (RUO) and Special Use Permit (SUP) that allows Drakes Bay Oyster Company (DBOC) to operate within the estero, NPS has expressed concern over the scope and intensity of impacts of the shellfish culture operations on the estero's ecosystem. Public debate over whether scientific information justifies closing the oyster farm led to the request for this study to help clarify the scientific issues raised with regard to the shellfish mariculture activities in Drakes Estero.
From wave-cut rock cliffs and sea caves to gravel beaches and coastal dunes, California’s coastline has enthralled visitors from around the world. A Coast to Explore describes the origins of these coastal features and unravels the wonderful mystery of how the birth of the San Andreas Fault system created what we see today. Miles O. Hayes and Jacqueline Michel have been mapping the coast of California since the 1980s as part of a larger initiative to protect coastlines around the world from hazardous oil spills. A Coast to Explore is the culmination of their work. Through a delightful narrative, it details the geological evolution of central California’s coast from Bodega Bay to Point Conception, including the effects of erosion during El Niños, the impacts of tsunamis, and the formation of spectacular raised marine terraces. Key ecological resources are described for each of the major subdivisions of the coast. Through richly illustrated diagrams, full-color photographs, and satellite images, A Coast to Explore takes readers on a fascinating journey of discovery so they can better understand why the Central California coast is so remarkable.