Near the end of the 1920s, an oil boom started at theEllwood Oil Field resulting in additional drilling along the coast. DuringWorld War II, a Japanese submarine shelled the pier, tanks, and associated equipment.[4] TheBombardment of Ellwood began in the evening of February 23, 1942. A few weeks after theattack on Pearl Harbor, theContinental United States came under attack. Aradio address by PresidentFranklin D. Roosevelt was being broadcast when the sub surfaced in theSanta Barbara Channel.[5] No one was hurt but there was damage to an oil pier. The incident created fear, and panic on the West Coast.[6] The Army set up a radar unit where a beach resort had developed in the early 1920s as theautomobile age began and the beaches became a popular destination for motorists. After the unit was decommissioned in 1946, the owners sold the property to the state andRefugio State Beach continued as a popular beach getaway.[7] In 1953, the state purchased another private campground and createdEl Capitán State Beach.[8]
Congress ordered a study in 1999 for a proposed 76-mile-long (122 km) National Seashore fromCoal Oil Point atUC Santa Barbara toPoint Sal at the northern boundary ofVandenberg Space Force Base.[9] Although theNational Park Service found the area suitable with nationally significant natural and cultural resources,[2] the study found the establishment to not be feasible due to local opposition within the approximately 200,000 acres (81,000 ha) study area and the high cost of acquiring land and operating a new park.[10][11]
Crude oil andnatural gas produced byoffshore platforms is processed at onshore receiving plants connected to distantrefineries by pipelines. TheRefugio oil spill on May 19, 2015, immediately north of Refugio State Beach, leaked 142,800 U.S. gallons (3,400 barrels; 541,000 liters) ofcrude oil out of one of the pipelines.[12]
In July 2015, theNorthern Chumash Tribal Council submitted aa nomination of the ocean area off the Gaviota Coast for inclusion in anational marine sanctuary.[13][14] After a positive review of the nomination, theNational Oceanic and Atmospheric Administration (NOAA) began the process of designating theChumash Heritage National Marine Sanctuary with a public comment process in 2021.[15] Under the original proposal, it would have included about 7,600 square miles (19,700 km2) of the Pacific Ocean and its shoreline would have extended for 156 miles (251 km), including coastal landmarks significant to the Chumash people's heritage from Gaviota Creek north to Santa Rosa Creek near the town ofCambria in San Luis Obispo County.[16] NOAA designated the sanctuary on October 11, 2024,[14][17] with an area of 4,543 square miles (11,766 km2) and a 116-mile (187 km) coastline stretching from just south of theDiablo Canyon Power Plant in San Luis Obispo County southward toNaples Reef off Santa Barbara County.[17][18][19][20] The sanctuary has extensivekelp forests, vast sandybeaches, coastaldunes, andwetlands serving as nursery grounds for numerous commercial fishspecies and importanthabitats for manythreatened andendangered species.[21][21]
The Alisal Fire ignited in the afternoon of October 11, 2021; it burned 16,970 acres (6,868 ha) and destroyed 12 homes.[22] One of the last blazes of the2021 California wildfire season, the wildfire broke out near the Alisal Reservoir and strong northwest winds rapidly pushed the fire south through the ruggedLos Padres National Forest.[23] The fire grew by hundreds of acres within hours assundowner winds fanned the flames over the summit of theSanta Ynez Mountains towards the Tajiguas Landfill.[24] Gusting winds up to 70 miles per hour (110 km/h) prevented the dispatch of aircraft that were at the ready.[25] Critically low fuel moisture resulted in very extreme fire behavior during the first two nights.[26] The next day as winds turned more favorable, tanker jets created fire breaks by dispersingfire retardant. Throughout each day, the turnaround was quick as ground crews reloaded the aircraft at theSanta Maria Air Tanker Base.[27] After the fire crossed Route 101 toTajiguas Beach, it expanded east and west and kept the highway closed for over three days.[28] Commuter and long-distance rail service were also suspended during that period.[29] The state beaches, Gaviota, Refugio, and El Capitán, closed as the firefighters used them for housing, access, and staging.[30] The fire burned the filtration system which uses wood chips at the Tajiguas Landfill and damaged the drainage system, the landfill gas collection system, and some heavy equipment.[31] Crews worked to keep the fire away from buildings on the scattered ranches, the shuttered Exxon Mobil facility in Las Flores canyon, andRancho del Cielo, the vacation home of PresidentRonald Reagan and First LadyNancy Reagan.[32] Freedom Lake, one of two lakes at the ranch, has been used to supply aerial water drops.[33] Four single residences were reported destroyed on October 16, along with two outbuildings that suffered damage. Firefighters prepared for expected higher temperatures and drier winds.[34] The fire was fully contained on November 20.[35] Preparations for potential mudslides, and debris flows began with a team of engineers, scientists, and geologists determining at-risk spots.[36] Highway 101 repair projects included clearing and repairing damageddrainage culverts and installing rock netting on bare hillsides.[37] Volunteer efforts included efforts to help the native vegetation grow back where bulldozers had createdfire lines.[38]
Situated on a narrowcoastal terrace between a rugged coastline and theSanta Ynez Mountains which parallels the coast along its entire length with the north end of the mountain range diverging into two low ridges, separated byJalama Creek, which then vanish into the Pacific Ocean just before reachingLompoc. TheSanta Ynez River flows just north of the mountains, paralleling them for most of their length. Much of the mountain range is within theLos Padres National Forest,[39] The mountains parallel theChannel Islands to the south, another east–west trending range which is a geologic extension of theSanta Monica Mountains.
The Gaviota Creek watershed is the largest watershed along this coast and is the most importantsteelhead stream in Southern Santa Barbara County.[40] Refugio Creek is one of the larger coastal streams along the coast and descends through a mosaic of commercial orchards, ranches, and rural residential developments and crosses under Highway 101 before flowing into thePacific Ocean.[41]
The coastal waters are considered unique for thebiodiversity of ocean life.[42][43] The unusual species found here are the result of the cold water from the north meeting the warm water from the south.[44] Theannual migration of about 19,000Gray whales through theSanta Barbara Channel may come as close as 100 feet (30 m) from the shoreline.[44] The marine environment has extensive kelp forests and wetlands serving as nursery grounds for numerous commercial fish species and important habitat for many threatened and endangered species.[21]
With theMediterranean climate, the unusual abundance and diversity of wildlife includes an estimated 1,400 plant and animal species.[9] The Santa Ynez Mountains are amigration corridor for wildlife from the large interior region of California. Wildlife includesmountain lions,black bears,badgers,golden eagles, and theCalifornia condor.[45] A 2023 study showed the need to improve wildlife corridors by fixing culverts to accommodate larger species such as mule deer and mountain lion.[46]
Dos Pueblos, a 214-acre ranch (87 ha), was subdivided asNaples, but remained undeveloped.[51] The ranch is withinRancho Dos Pueblos, a 15,535-acre (62.87 km2)Mexican land grant, stretching between theGoleta Slough and the boundary of El Capitan State Beach.[52][53] Dos Pueblos Institute uses the ranch as an outdoor classroom teaching sustainable agriculture and provides Chumash bands with a place for ceremonies.[54] The Cultured Abalone Farm, which is situated on the ranch, is partnering with theSanta Barbara Museum of Natural History Sea Center and the National Oceanic and Atmospheric Administration Southwest Fisheries Science Center on theWhite Abalone Restoration Consortium, which is studying this endangered marine snail and restoring the wild populations. They are also collaborating in developing curriculum to educate the next generation about sustainableaquaculture andconservation.[55]
Hollister Ranch has six beaches but they are difficult for the public to access.[56] Some of the ranches are also luxury estates.[57] El Rancho Tajiguas is a 3,600 acres (1,500 ha) working ranch that was developed with two luxury homes over a period of 40 years under the ownership ofMansour Ojjeh.[58][59] The 1,800 acres (730 ha) Las Varas Ranch was purchased byCharlie Munger and donated to theUniversity of California, Santa Barbara in 2018.[60]
The area was one of the earliest locations in California developed foroffshore oil and gas production.Crude oil andnatural gas are produced fromoffshore platforms. The Hondo and Harmony oil rigs can be easily seen offshore in front of the Channel Islands in the Santa Barbara Channel from the highway or railroad.[61] Local land use agencies have kept oil processing facilities to a minimum while the oil and gas are processed at onshore receiving plants before being transported to distantrefineries.
The Strauss Wind Farm, consisting of twenty-seven windmills atop rolling hills near the ocean, powered up in 2023. The firstwind power complex on the California coast is about 3.5 miles (5.6 km) southwest of Lompoc, the nearly 3,000-acre site (1,200 ha) includes IdentiFlight, a way to identify approaching raptors and temporarily stop the turbines before the raptors enter rotor range, asred-tailed hawks are common here.[62]
US 101 northbound approachingGaviota Tunnel through the Santa Ynez Mountains
US 101 and themain coastal railroad line both parallel the coastline atop the coastal bluff withtrain trestles crossing the stream beds that cut through the slope.[65] The 21-mile-long (34 km) section of US 101 from the north boundary ofGoleta toState Route 1 atLas Cruces is designated by the state as a scenic highway.[66] While the highway turns inland atGaviota State Park, the coastal bluff section of the rail line is longer at 30 miles (48 km) traversing areas mostly inaccessible to the public.[67][68] A 2.5-mile (4.0 km) section of theCalifornia Coastal Trail was built within Gaviota State Park.[69][70] An Interim alignment for a section of the trail fromGuadalupe to the state park is under study.[71][72] These routes follow Chumash andSpanish Period trails.[2]
^Assistant Secretary for Fish and Wildlife and Parks, United States Department of the Interior (March 5, 2004)."Gaviota Coast Feasibility Study"(PDF). Letter to Richard Pombo Chairman, Committee on Resources House of Representatives. Archived fromthe original(PDF) on July 3, 2004. RetrievedDecember 2, 2020.
^Kester, Andria (April 27, 2017)."Saving The Gaviota Coast".Odyssey Online. Antioch University, Santa Barbara.Archived from the original on September 28, 2020. RetrievedSeptember 22, 2020.
^United States. District Court (California : Southern District). Land case. 150 (1842),Diseño del Rancho Los Dos Pueblos, California (in Spanish),archived from the original on January 7, 2022, retrievedJanuary 7, 2022{{citation}}: CS1 maint: numeric names: authors list (link)
^Hamm, Keith (December 12, 2018)."UCSB Gifted Las Varas Ranch".The Santa Barbara Independent.Archived from the original on February 25, 2021. RetrievedDecember 31, 2020.
^Slack, Gordy."Saving the Seagull Coast".Land & People. The Trust for Public Land.Archived from the original on March 17, 2022. RetrievedDecember 1, 2020.