38 PAC I F I COCEANPillar PointPoint San Pedro18649San FranciscoPoint BonitaSan Rafael18651Redwood CitySUISUNB AY18656San Leandro18657 18658 18666 18659Palo AltoS A N F RA N C I S CO B AY18650OaklandBerkeley1865518653S A N PA B LO B AYVallejoNapaRio I18663U.S. Coast Pilot 7, Chapter 7 18645NORTHFarallon IslandsBolinas PointDRA KE S B AYPetaluma18654C A L I F O R N I A122 ER18647Point ReyesBodega Head123 NOAA’s Online Interactive Chart Catalog has complete chart log/nrnc.shtmlChart Coverage in Coast Pilot 7—Chapter 7RASACRVERITO MEN27009 JAN 2022

09 JAN 2022 U.S. Coast Pilot 7, Chapter 7 San Francisco Bay, California(1)(11)ENC - US3CA14MENCs - US4CA11M, US5CA11MChart - 18640Chart - 18645San Francisco Bay, the largest harbor on the Pacificcoast of the United States, is more properly described asa series of connecting bays and harbors of which SanFrancisco Bay proper, San Pablo Bay and Suisun Bayare the largest. Depths of 29 to 40 feet are available fordeep-draft vessels to San Francisco, Oakland, Alameda,Richmond and Redwood City in San Francisco Bayproper; to Stockton on the San Joaquin River; and toSacramento through the lower Sacramento River and adeepwater channel. Much of the local navigation is bylight-draft vessels and barges.(3)The extensive foreign and domestic commerceof San Francisco Bay is handled through the severallarge ports that are the terminals for many transpacificsteamship lines, airlines and transcontinental railroads.(4)The east shore of San Francisco Bay proper is lowexcept for rolling grassy hills in the north part and extensivemarshes intersected by numerous winding sloughs in thesouth part. The west shore north of the entrance is muchbolder than the east shore where there are only a fewstretches of low marsh. Below San Francisco, marshesand flats intersected by numerous sloughs extend to thesouth end of the bay.(5)The Coast Guard Captain of the Port, San Francisco,has ordered that all ships greater than 300 gross tonsanchored in San Francisco Bay maintain a radio listeningwatch on VHF-FM channels 13 and 14 when the wind is25 knots or greater. Any ship not equipped with channel13 shall maintain a listening watch on VHF-FM channel16. This radio watch must be maintained by a person whocan speak the English language.(2)(7)COLREGS Demarcation LinesThe lines established for San Francisco Bay aredescribed in 33 CFR 80.1142, chapter 2.(8)(9)Blue, fin and humpback whalesAll whales are protected under the Marine MammalProtection Act (MMPA) and, when in Sanctuary waters,under the National Marine Sanctuaries Act (NMSA).Certain large whales, including blue, fin and humpbackwhales, are also listed as endangered under the EndangeredSpecies Act (ESA). See chapter 3 for more information.(10)The entrance to San Francisco Bay is through Gulfof the Farallones and the narrow Golden Gate. The gulfextends from Point San Pedro on the south for 34 milesto Point Reyes on the north and has a greatest width of 23miles from Farallon Islands on the west to the mainland.(13)In clear weather many prominent features areavailable for use in making San Francisco Bay, but inthick weather the heavy traffic and the currents, variablein direction and velocity, render the approaches difficultand dangerous. Point San Pedro, Montara Mountain,Farallon Islands, Mount Tamalpais and Point Reyes areprominent in clear weather and frequently can be seenwhen the land near the beach is shut in by low fog or haze.Radar navigation on the approach to San Francisco Bayis not difficult because of the numerous distinctive andhigh relief of targets available. Southeast Farallon Island,Point Reyes, Double Point, Bolinas Point, Duxbury Point,Rocky Point, Point Bonita, San Pedro Rock and Point andPillar Point are good radar targets.(14)The first 8 miles of coast from Point San Pedro toSan Francisco Bay entrance consists of whitish bluffsthat reach a height of 600 feet, then a 3-mile sand beachextends to the entrance. Shelter Cove, on the north sideof Point San Pedro, provides shelter from the east stormswith good holding ground in gray sand bottom. SanPedro Rock, close to the point and 100 feet high, alsogives some protection in south weather.(15)The Greater Farallones National MarineSanctuary has been established to protect and preservethe natural, cultural and historical resources in the waterssurrounding the Farallon Islands, including offshore ofthe Marin and Sonoma county coasts to Bodega Head.The sanctuary boundary includes the estuarine waters ofBolinas Lagoon, Tomales Bay, Estero Americano, Esterode San Antonio and Bodega Bay but not Bodega Harbor.Visitor use is encouraged for boating, diving, snorkeling,fishing, swimming, kayaking and wildlife viewing. (See15 CFR 922.80 through 922.85, chapter 2, for limits andregulations.)(16)Farallon Islands, 23 miles west of San FranciscoBay entrance, are rocky islets extending northwest for7 miles. Southeast Farallon, the largest of the group,actually consists of two islands separated by a narrowimpassable gorge. The larger east island is pyramidal inshape and 350 feet high; a small-boat landing is on the(12) 271

272U.S. Coast Pilot 7, Chapter 7 09 JAN 2022(6)Enforcement of Navigation Rules in San Francisco BayFor any vessel operating within a narrow channel or fairway east of the COLREGS Demarcation Line, Rule 9 of the Inland Navigation Rules(33 CFR §83), Narrow Channels, applies.The following locations are designated as narrow channels or fairways for the purpose of enforcing the Inland Navigation Rules(33 CFR §83) within San Francisco Bay. This list is not all-inclusive, but identifies areas where deep draft commercial and public vesselsroutinely operate.1All traffic lanes, separation zones and precautionary areas within the San Francisco Bay Region’s Regulated Navigation Area (RNA)defined in 33 CFR §165.1181 including: Golden Gate Traffic Lanes Golden Gate Precautionary Area Central Bay Traffic Lanes Central Bay Precautionary Area North Ship Channel RNA San Pablo Strait Channel RNA Pinole Shoal Channel RNA Benicia-Martinez Railroad Bridge RNA Southampton Shoal Channel/Richmond Harbor RNA Oakland Harbor RNA2Point Potrero Reach/Turn3Richmond Harbor Channel4Santa Fe Channel5Oakland Inner Harbor from Inner Harbor Channel Light 8 to, and including Brooklyn Basin South Channel6Oakland Outer Harbor7Alameda Naval Air Station Channel8South San Francisco Bay Channels between the Central Bay Precautionary Area and Redwood Creek Entrance Light 29Redwood Creek between Redwood Creek Entrance Light 2 and Redwood Creek Light 2110Carquinez Strait between the Pinole Shoal Channel RNA and the Benicia-Martinez Highway Bridge11Mare Island Strait between Mare Island Light 2 and Mare Island Causeway Bridge12Suisun Bay Channels between the Benicia-Martinez Highway Bridge and Suisun Bay Light 3413New York Slough between Suisun Bay Lighted Buoy 30 and San Joaquin River Light 214Sacramento River and Sacramento Deep Water Ship Channel from Suisun Bay Light 34 to the Port of Sacramento15San Joaquin River from San Joaquin River Light 2 to the Port of StocktonFor any vessel west of the COLREGS Demarcation Line operating within the Off San Francisco Traffic Separation Scheme, Rule 10 of theInternational Regulations for Preventing Collisions at Sea 1972 (72 COLREGS), Traffic Separation Schemes, applies.The following areas are designated Traffic Separation Schemes per 33 CFR §167.400-406. Off San Francisco: Precautionary Area Off San Francisco: Northern Approach Off San Francisco: Southern Approach Off San Francisco: Western Approach Off San Francisco: Main Ship Channel Off San Francisco: Area to be Avoidedsouth side. Farallon Light (37 41'57"N., 123 00'07"W.),358 feet above the water, is shown from a white conicaltower on the highest peak of the island. Dwellings are onthe lowland on the south side of the island. FishermanBay, just north of Farallon Light, is somewhat protectedby several rocky islets on the west side and affordsanchorage in 8 fathoms in the outer part. Boats can belanded on a small sand beach on the largest islet.(17)Hurst Shoal, 0.6 mile southeast of Farallon Light,is covered 22 feet and breaks only in heavy weather.(18)Middle Farallon, 2.3 miles northwest of the light, isa 20-foot single black rock 50 yards in diameter; severalrocks covered 5 to 7 fathoms are within 0.7 mile southand southwest of it.(19)North Farallon, 6.5 miles northwest of FarallonLight, consists of two clusters of bare precipitous isletsand rocks from 91 to 155 feet high, 0.9 mile in extent,and 0.3 mile wide; submerged rocks surround them.(20)Fanny Shoal, 9.8 miles northwest of Farallon Lightand 14 miles southwest of Point Reyes, is 2 miles in extentand covered 2 to 30 fathoms. Noonday Rock, covered3 1/4 fathom, rises abruptly from 20 fathoms and is theshallowest point of the shoal; it is the principal danger inthe north approach to San Francisco Bay. A lighted bellbuoy is about 0.7 mile west of the rock. Noonday Rockderives its name from the clipper ship that struck it in1862 and sank within an hour, in 40 fathoms.(21)Cordell Bank, 27 miles northwest of Farallon Lightand 20 miles west of Point Reyes, is about 6 miles longand 3 miles wide; the bank is covered 20 to 40 fathoms,but depths increase rapidly outside it.

09 JAN 2022 The Cordell Bank National Marine Sanctuaryhas been established to protect and conserve the special,discrete, highly productive marine area of Cordell Bankand its surrounding waters and to ensure the continuedavailability of the areas ecological, research, educational,aesthetic, historical and recreational resources. (See 15CFR 922, chapter 2, for limits and regulations.)(22)(23)ENC - US5CA97MChart - 18647U.S. Coast Pilot 7, Chapter 7 Bolinas Point, 15.3 miles southeast of Point ReyesLight, is 160 feet high and the west extremity of thecomparatively level tableland extending east to BolinasLagoon. An aerolight and numerous radio towers are 0.6mile north of the point.(31)Duxbury Point, 16.5 miles southeast of Point ReyesLight, is 160 feet high and yellow in color. The point isthe south edge of the tableland west of Bolinas Lagoon.(32)Duxbury Reef, extending 1.2 miles southeast ofDuxbury Point, is long, narrow and partly bare at lowwater. A ledge covered 9 to 36 feet extends from thereef to about 1.4 miles south of the point; a lighted buoyis about 2 miles south of the point. Great care must beexercised in passing this area.(30)Point Reyes, 18 miles north of Farallon Light, is abold, dark, rocky headland 612 feet high at the west andhigher extremity of a ridge running in an east directionfor 3 miles. It is an excellent radar target in thick weather. (33)WarningThere is lowland north of the point, so that from north(34)It was reported that in heavy weather strong northand south, and from seaward in hazy weather, it usuallycurrentsresulting from prolonged south winds may existappears as an island. The point is visible for over 25 miles.intheareafrom Duxbury Reef to Golden Gate.(25)Point Reyes Light (37 59'44"N., 123 01'23"W.),265 feet above the water, is shown from a platform on top (35)of a square building on the west extremity of the point. A ENCs - US4CA11M, US5CA11M, US5CA12Msound signal is at the light. Two rocks, 275 yards west of Charts - 18645, 18649the light, are covered about 3 feet and break in a moderateswell.(36)Bolinas Bay, east of Duxbury Point, is an open(26)Drakes Bay, named after English explorer Sirbight 3.5 miles wide between Duxbury Point and RockyFrancis Drake, who anchored here in 1579, is northeastPoint. The bay affords shelter in northwest weather inof the 1-mile-long 200-foot-high, narrow peninsula that24 to 36 feet, sandy bottom. Care must be taken to avoidforms the easternmost part of Point Reyes. White cliffsDuxbury Reef and the dangers extending up to 0.7 milecommence at the southwest angle of the bay and curveeast of it. Bolinas Lagoon is separated from the bay byround to the northeast for about 6 miles, ending at higha narrow strip of sandy beach that is cut by a narrowwhite sand dunes. This curving shoreline forms Drakesshifting channel. The lagoon is shoal and entered onlyBay, which affords good anchorage in depths of 4 toby small boats with local knowledge. The entrance has a6 fathoms, sandy bottom, in heavy northwest weather.depth of less than 3 feet.Several lagoons back of the north shore empty into the (37) Rocky Point is 100 feet high and shelving.bay through a common channel that is navigable byNumerous detached rocks are within 200 yards of theshallow-draft vessels with local knowledge.high and precipitous cliffs on the south side of the point.(27)Chimney Rock lies close under the outer end of (38)The 6-mile coast between Rocky Point and Pointthe Drakes Bay peninsula. The area between ChimneyBonita is very rugged and broken. The cliffs, whichRock and the 5-fathom curve, 0.4 mile east and southeast,are seaward ends of spurs from Mount Tamalpais, risebreaks in moderate weather. A lighted whistle buoy isto heights of over 500 feet and are cut by deep narrowmoored 0.6 mile southeast of the rock.valleys stretching inland.(28)Drakes Bay is used extensively in heavy northwest (39) Point Bonita, on the north side of the entranceweather, and many fishing vessels operate from hereto Golden Gate, is a sharp black cliff 100 feet high,during the season. A fish wharf is about midway alongincreasing to 300 feet on its seaward face, 0.3 mile north.the inner side of the peninsula. A visible wreck is aboutFrom northwest it shows as three heads. Point Bonita100 feet east of the fish wharf in about 37 59'41"N.,Light (37 48'56"N., 122 31'46"W.), 124 feet above the122 58'19"W. Visible and submerged piles west of thewater, is shown from a 33-foot white tower on the southfish wharf are a hazard.head. A mariner-radio-activated sound signal at the light(29)From the sand dunes near the east part of Drakesis initiated by keying the microphone five times on VHFBay, cliffs 100 to 200 feet high extend 5 miles southeast toFM channel 81A. A tower and radar antenna operated byDouble Point, which has two high spurs, 0.4 mile apart,the San Francisco Vessel Traffic Service is prominent onprojecting 200 to 300 yards from the general coastline. Athe north head about 0.3 mile from the light. In summersmall 47-foot-high island is 300 yards off the northwestthe cliffs are white with bird droppings, but the first heavyspur, and a 54-foot-high rock is close under the longerrain restores them to their natural black color. There areand lower southeast spur. From Double Point to Bolinasa few detached rocks surrounding the point, but these doPoint, about 3.5 miles southeast, the coast is bold withnot extend over 200 yards offshore.high cliffs behind narrow sand beaches.(24) 273

274 U.S. Coast Pilot 7, Chapter 7 Bonita Cove, east of Point Bonita, is occasionallyused as an anchorage by small vessels. The anchorage isclose under Point Bonita in about 36 feet.(41)Mount Tamalpais, 7 miles north of Point Bonita,is visible for over 60 miles in clear weather. From southand west it shows three summits, the westernmost withtwo radar domes is the highest and the easternmostwith a lookout tower is the sharpest. The mountain iscovered with bushes and scrub trees, giving it a darkappearance that contrasts strongly with the surroundinghills, especially in summer when the hills assume a lightreddish color.(42)San Francisco Approach Lighted Whistle BuoySF (37 45'00"N., 122 41'34"W.) is 9 miles westsouthwest of San Francisco Bay entrance. The buoy isred and white and is equipped with a racon.(43)San Francisco Bar, a semicircular shoal withdepths less than 36 feet, is formed by silt deposits carriedto the ocean by the Sacramento and San Joaquin Riversystems. The bar extends from 3 miles south of PointLobos to within 0.5 mile of Point Bonita off the southerncoast of Marin Peninsula; the extreme outer part is about5 miles west-southwest of San Francisco Bay entrance.Potatopatch Shoal, the north part of the bar on FourFathom Bank, has depths from 24 to 28 feet.(40)(44)WarningVery dangerous conditions develop over the barwhenever large swells, generated by storms far out at sea,reach the coast. A natural condition called shoaling causesthe large swells to be amplified and increase in height whenthey move over the shallow water shoals. This piling upof the water over the shoals is worsened during timeswhen the tidal current is flowing out (ebbing) throughthe Golden Gate. Outbound tidal current is strongestabout 4 hours after high water at the Golden Gate Bridgeand attains a velocity in excess of 6 knots at times. Theincoming large swells are met by outbound tidal currentcausing very rough and dangerous conditions over thebar. Steep waves to 20 or 25 feet have been reported inthe area. Mariners should exercise extreme caution as thebar conditions may change considerably in a relativelyshort period of time.(46)The most dangerous part of the San Francisco Baris considered to be Four Fathom Bank. Bonita Channel,between the shoal and the Marin coast, can also becomevery dangerous during large swell conditions. The safestpart of the bar is the Main Ship Channel through thecenter of the bar. But even that area can be extremelydangerous when the tidal current is ebbing. See the TidalCurrent prediction service at for specific information about times, directions, andvelocities of the current at numerous locations throughoutthe area. Links to a user guide for this service can be foundin chapter 1 of this book.(47)Golden Gate, the passage between the ocean andSan Francisco Bay, is 2 miles wide at the west end(45)09 JAN 2022between Point Bonita and Point Lobos, but the channelis reduced in width to 1.5 miles by Mile Rocks and to lessthan 0.7 mile by the Golden Gate Bridge pier. Depths inthe passage vary from 108 feet to over 300 feet.(48)Point Lobos, the south entrance point to the GoldenGate, is high, rocky and rounding with black rugged cliffsat its base. A large water tank is on the summit. The CliffHouse is near the south part of the west face of the point;high and rocky Seal Rocks are just offshore.(49)Mile Rocks, 700 yards northwest of the sharpprojecting point off Lands End on the north face ofPoint Lobos, are two small 20-foot-high black rocksabout 100 feet apart. Mile Rocks Light (37 47'34"N.,122 30'37"W.), 49 feet above the water, is shown from anorange and white horizontally banded tower on the outerand larger rock; a sound signal is at the light.(50)Passage between Mile Rocks and Point Lobosshould not be attempted because of the covered andvisible rocks extending over 300 yards from shore and therocks covered 6 and 14 feet south of Mile Rocks Light.(51)The south shore of the Golden Gate extends in agentle curve northeast for 2 miles to Fort Point, forminga shallow bight called South Bay. The cliffs rise abruptlyfrom narrow beaches, except near the middle of thebight where a valley terminates in a sand beach 0.3mile long. Sailing craft are sometimes obliged to anchorhere when becalmed, or when meeting an ebb current,to avoid drifting onto Mile Rocks, but the anchorage isuncomfortable and it is difficult to get underway from it.(52)Fort Point projects slightly from the high cliffs andis marked by a square red brick fort with a stone seawallin front. The fort, which is obscured by the south end ofthe Golden Gate Bridge, and 29 acres of land adjacent tothe fort are part of the Fort Point National Historic Site.The fishing wharf at Fort Point is unsafe for mooringbecause of surge conditions.(53)The north shore of the Golden Gate is bold andrugged, with reddish cliffs rising abruptly from thewater’s edge to over 600 feet.(54)Point Diablo, 1.4 miles east of Point Bonita, risesabruptly from a 0.1-mile sharp projection to a heightof over 200 feet with deep water on all sides. A light isshown from a white house on the end of the point; a soundsignal is at the light.(55)The mile-long shore between Point Diablo and LimePoint forms a shallow bight with steep cliffs. Near themiddle of the bight the cliffs are cut by a narrow valleythat ends in a low beach at the shore.(56)Lime Point, 2.5 miles east of Point Bonita, is highand precipitous and rises abruptly to a height of nearly500 feet in less than 0.3 mile. A light is shown from a poleat the end of the point.(57)Golden Gate Bridge, crossing the Golden Gatefrom Fort Point to Lime Point, has a clearance of 225 feetat the center of the 4,028-foot-wide channel span betweenthe 740-foot-high supporting towers; the least clearanceof 211 feet at the south pier. Two scaffolds located in themain navigation channel span and one scaffold in the

09 JAN 2022 southern span reduce vertical clearance by approx 12 feetand are lighted at night with red lights. The Golden GateBridge District will move the scaffolding upon 48 hoursadvance notice for the passage of vessels. Scaffoldingis moved to the piers when not in use. Mariners shouldcontact the Golden Gate Bridge at 415–923–2230. Thecenter of the span is marked by a fixed green light withthree fixed white lights in a vertical line above it andby a private sound signal and racon; a private light andsound signals are on the south pier. When approachingGolden Gate Bridge in the eastbound traffic lane in fog,channel Buoy 2 sometimes provides a radar image thatindicates the location of the south pier of the bridge. Aeroobstruction lights mark the tops of the bridge towers.(58)Traffic Separation SchemeTraffic Separation Scheme San Francisco is offthe entrance of San Francisco Bay and inside the GoldenGate into San Francisco Bay—see 33 CFR 167.1 through167.15 and 167.400 through 167.406, chapter 2, forlimits and regulations. These schemes are designatedto aid in the prevention of collisions at the approachesto major harbors and along heavily traveled waters butare not intended in any way to supersede or to alterthe applicable Navigation Rules. Separation zones areintended to separate inbound and outbound traffic andto be free of ship traffic. Separation zones should not beused except for crossing purposes. Mariners should useextreme caution when crossing traffic lanes and separationzones. Rule 10 of the Navigation Rules applies to thisTraffic Separation Scheme. Note—parts of the chartedTraffic Separation Scheme have been amended by theInternational Maritime Organization (IMO) and have notbeen updated in the Code of Federal Regulations. (SeeIMO COLREG.2/Circ.64.)(60)Traffic Separation Scheme San Francisco iscomposed of directed traffic areas, each with one-wayinbound and outbound traffic lanes separated by definedseparation zones, a precautionary area and a pilot boatcruising area. The scheme is recommended for use byvessels approaching or departing San Francisco Bay butis not necessarily intended for tugs, tows or other smallvessels that traditionally operate outside of the usualsteamer lanes or close inshore.(61)The precautionary area off the entrance to SanFrancisco Bay is inscribed by a circle with a radius of6 miles centered on San Francisco Approach LightedWhistle Buoy SF with the traffic lanes fanning outfrom its periphery. Extreme caution must be exercisedin navigating within the precautionary area as bothincoming and outgoing vessels use the area while makingthe transition between San Francisco Main Ship Channeland one of the established directed traffic areas as wellas maneuvering to embark and disembark pilots. Vesselsare advised to maintain a 1 mile closest point of approachwith other vessels while transiting the precautionary area.(59)U.S. Coast Pilot 7, Chapter 7 It is recommended that all vessels in the precautionaryarea guard VHF-FM channels 13 and 14.(62)A circular area to be avoided, with a 0.5 mile radiuscentered on the San Francisco Approach Lighted WhistleBuoy SF, is established in the precautionary area of theSan Francisco Traffic Separation Scheme. This area is forthe protection of the lighted whistle buoy. Mariners arecautioned that the buoy cannot be safely used as a leadingmark to be passed close aboard and are requested to stayoutside that area.(63)When not calling at San Francisco mariners are urgedto sail direct between Point Arguello and Point Arena soas to pass the San Francisco Bay area to the west of theFarallon Islands and clear of the San Francisco TrafficSeparation Scheme. In this manner through coastwisetraffic will avoid crossing the directed traffic areas and/or precautionary area.(64)The pilot boat cruising area is about 1 mile northeastof the San Francisco Approach Lighted Whistle Buoy SF.(See pilotage for San Francisco Bay, this chapter.)(65)An additional Traffic Separation Scheme has beenestablished through the Main Ship Channel and GoldenGate into San Francisco Bay. The scheme consists of oneway traffic lanes separated by a separation line and, afterentry into San Francisco Bay, includes a precautionaryarea, a regulated navigation area and recreationareas. For purposes of International Navigation Rule10, this scheme has been adopted by IMO seaward ofthe demarcation line. (See Traffic Separation Schemes,chapter 1, for additional information).(66)Vessel Traffic ServiceVessel Traffic Service San Francisco serves SanFrancisco Bay, its seaward approaches and its tributariesas far inland as Stockton and Sacramento. Participationis mandatory for certain vessels within navigable watersof the United States. (See 33 CFR 161.1 through 161.23and 161.50, chapter 2, for limits and regulations.)(68)The purpose of the San Francisco Vessel TrafficService (VTS) is to coordinate the safe, secure andefficient transit of vessels in San Francisco Bay includingits approaches and tributaries in an effort to preventaccidents with the possible associated loss of life, damageto property and the environment. VTS also fully supportsCoast Guard and other public service missions throughits unique communications and surveillance capabilities.The Vessel Traffic Center (VTC), located on Yerba BuenaIsland in San Francisco, is staffed 24 hours a day, sevendays a week by Coast Guard personnel.(69)The VTS uses radar, closed-circuit television andVHF-FM radiotelephone to gather information and usesVHF-FM radiotelephone to disseminate information.Information provided by the VTS is mostly generatedfrom vessel reports; this information can therefore be nomore accurate than the reports received from marinerscoupled with the ability of VTS equipment to verify thosereports. The VTS may not have first hand knowledge(67) 275

276 U.S. Coast Pilot 7, Chapter 7 of hazardous circumstances existing in the VTS area.Unreported hazards may still confront mariners at anytime. This service does not in any way supersede oralter applicable Navigation Rules. The owner, operator,charterer, master or person directing the movement ofthe vessel remains at all times responsible for the mannerin which the vessel is operated and maneuvered and isresponsible for the safe navigation of the vessel underall circumstances.(70)The VTS maintains a continuous radiotelephonewatch on VHF-FM channels 12, 13, 14, and 16. TheVTS is also equipped to communicate on all VHF-FMradiotelephone channels. The radio call sign is “SanFrancisco Traffic Service.” After communications havebeen established, the abbreviated call sign “Traffic” maybe used. Mariners may also contact VTS by cellular orland-line telephone at 415–556–2760.(71)The VTS area is divided into two sectors: offshoreand inshore. The Offshore Sector consists of the oceanwaters within a 38-nautical mile radius of MountTamalpais (37 55.8'N., 122 34.6'W.) excluding theSan Francisco Offshore Precautionary Area. (The SanFrancisco Offshore Precautionary Area is the area withina six-mile radius of the San Francisco Approach LightedWhistle Buoy SF.) Channel 12 VHF-FM is the designatedworking frequency for the Offshore Sector. At minute15 and minute 45 of each hour, VTS makes broadcastsgiving the positions, courses and speeds of participatingvessels in the sector.(72)The Inshore Sector consists of the waters of the SanFrancisco Offshore Precautionary Area eastward to SanFrancisco Bay and its tributaries extending inland to theports of Stockton, Sacramento and Redwood City. VHFFM channel 14 is the designated working frequency forthe Inshore Sector.(73)Reporting points for the San Francisco VTS area areas follows:(74)Offshore sector procedures(75)Initial check-in and sailing plan report(76)The Offshore Sector area is formally defined as theocean waters within a 38-nautical mile radius of MountTamalpais (37 55.8'N., 122 34.6'W.) excluding the SanFrancisco Offshore Precautionary Area (the area withina six-mile radius of the San Francisco Sea Buoy).(77)This translates roughly to an arc starting at theshoreline near Bodega Head, crossing Cordell Bank, thencircling southward to pass about 30 nautical miles westof the San Francisco Sea Buoy and curving eastward tothe shoreline near Pescadero Point.(78)The eastern boundary of the Offshore Sector is a linefrom Duxbury Point due south to the boundary of SanFrancisco Offshore Precautionary Area, then following09 JAN 2022the boundary of the Precautionary Area past the “N”“W”and “S” buoys, and then due east to Mussel Rock.(79)When approaching from sea, check in with VTS 15minutes from the outer boundary on VHF-FM channel 12and report your Sailing Plan.(80)Sailing planGive the following information in your sailing plan:(82)Vessel name(83)Vessel type(84)Position; latitude and longitude (if unable to providecoordinates then provide your bearing and range from theSan Francisco Sea Buoy)(85)ETA at next reporting point(86)ETA at the San Francisco Sea Buoy (if inbound) orthe outermost reporting point on your route (if outboundor transiting across the Offshore Sector)(81)(87)Sailing Plan Amplification ReportsWhen your vessel is at the next reporting point, callVTS. Give the followin

San Francisco Bay, California (1) ENC - US3CA14M Chart - 18640 (2) San Francisco Bay, the largest harbor on the Pacific coast of the United States, is more properly described as a series of connecting bays and harbors of which San Francisco Bay proper, San Pablo Bay and Suisun Bay a