Monterey Bay seabed from NOAA bathymetry. Heat = suspected black cod activity: depth curve calibrated to NOAA trawl-survey CPUE × slope × range from the ramp, MPAs excluded. Dots are the actual survey hauls. Vertical scale ×6.NOAA bathymetry · heat calibrated to trawl-survey CPUE · dots = survey hauls
Every legal sablefish drop within reach of a small boat sits on the main canyon axis and its walls, 2–11 nautical miles west of the Moss Landing harbor mouth. Depths are from the bathymetry grid; confirm on the sounder before you commit a rig.
The canyon head, directly west of the harbor mouth. Closest true deep water on the California coast. Narrow, steep, and it funnels tidal current, so it's also where you'll lose the bottom first on a big tide.
Drift the axis west-to-east or hold on the north wall shelf-break. Start here on every trip; it's a 15-minute run.
Wider canyon, softer current, and the wall depths line up exactly with the sweet spot for a 1,500-ft kit. If Z1 is blown out by current, slide here.
Hard stop at 121°56.00′W: the Soquel Canyon SMCA's east line. Anything west of it above 36°48′N is off-limits for bottom fishing.
A long, fishable slope on the canyon's south side with a gentler gradient, which makes it easier to keep a rig on the bottom. Longer run, less traffic.
Portuguese Ledge SMCA starts at 36°43.00′N; you're well north of it here, but keep the plotter honest.
The legal corridor between the two MPAs. Both canyon walls carry the depth band, the axis itself is out of reach for anything short of Platinum. Fewer boats, more fuel, and you're a long way from the harbor when the wind comes up.
Boxed in by 36°48.00′N to the north and 36°43.00′N to the south. Plot both lines before you go.
The West Coast Groundfish Bottom Trawl Survey towed this box 172 times with a clean haul; sablefish came up in 72 of them. Presence, median catch rate, and median fish size by depth:
Read it straight: below 900 ft the fish are always there, density keeps climbing to 2,000–2,500 ft, and the average fish grows with depth. That's the Gold argument as a table. The last few years are strong too: deep hauls in 2022, 2024 and 2025 ran 52, 81 and 38 kg/ha against a long-run median near 15.
Best eater hauls near the zones: 2017 at 36°45.7′N 122°00.9′W, 2,450 ft, 126 kg/ha of ~2.5 lb fish, on the axis inside the Z4 corridor; 2024 at 36°45.4′N 122°15.6′W, 2,800 ft, 81 kg/ha, and 36°43.7′N 122°15.8′W, 3,450 ft, 83 kg/ha, both in the outer canyon. A 2014 haul off Davenport at 426 ft pulled 216 kg/ha of 1-lb juveniles: proof the shelf is a nursery, not a target.
Caveats: the survey tows trawlable slope, not canyon walls, so it says little about Z1 and Z2 directly, and its average fish size includes juveniles that a squid-and-mackerel rig on 9/0 circles won't select. Tap near any dot on the map for that haul's year, depth, rate and fish size.
Skip Carmel Canyon: the deep water south of Point Pinos is largely inside the Point Lobos SMR/SMCA. Skip the outer canyon west of 122°04′W: 3,000 ft+ and a 12-mile run.
Four loadouts, from a punishment build to a two-rig, sounder-equipped program. Prices are rough US street prices in September 2026, before tax; treat them as a budget bracket, not a quote. Pick a tier on the Monterey map to see how much of the canyon it can actually reach.
Six people never need six electric reels. On a canyon drift, two or three rigs down at a time is the norm; more than that tangles 1,000 ft of braid. One reel of yours plus a second-hand Tanacom covers a boatload of friends who rotate, and the only thing they chip in for is their share of the charter.
Backup kit, in order of what actually fails: spare cord and fuses, second battery, four pre-tied rigs and double the sinkers, then the 5′6″ H bent-butt rod ($260) for holder work past 2,000 ft. About $500 for all of it. Not the G1800M-RJ: that's a swordfish reel.
Three rigs on the boat plus one bare spare rod. Two or three lines down at a time is the ceiling on a drift; six people rotate through drops, baiting, gaffing and icing.
Mixed capacity is fine: every reel here carries 2,000+ ft of line. What matters on a shared drift is the same sinker weight and similar line diameter on every rig so the lines scope at the same angle.
Nobody on Monterey Bay advertises a black cod trip, and bareboat rentals big enough for the canyon are rare. The realistic move is a private six-pack charter: you bring the electric setup and battery, they bring the hull, the sounder, and the local knowledge. Call, describe the plan, and ask the four questions at the bottom.
Photos: the operators' own galleries have the real boats. North Bay's boats page · Last Meal · Blue Knuckles · Kahuna · Reel Obsession · Pole Dancin'.
Charter-first decision means this section is for the day a boat question comes back. When it does: the R1T tows any of the 22–25 ft candidates, and the boat lives in a yard near the harbor, not at the house.
Trailer in the water 30 minutes before civil dawn, lines down at first light, and off the grounds by noon. The NW sea breeze fills the bay most afternoons from midday on; that's your hard stop, not the fish.
Sablefish don't care about dawn; the bite is bottom-driven. Early matters for the weather, not the fish. On a charter the captain sets the clock; the same logic applies.
Tide height is irrelevant at 1,000 ft. Current is everything: the canyon amplifies internal tides, and the head funnels them. Plan drops for the hour either side of high and low water at Monterey (NOAA station 9413450), and avoid new- and full-moon springs if you can pick your day.
Rule: line angle past ~30° means add a pound, shorten the drift, or re-drop. Don't fight it.
Wind ≤10 kt through 13:00, swell ≤5 ft at ≥10 s, the offshore buoy flat overnight.
10–15 kt by midday or 6–8 ft mixed swell. Fish Z1 only, one eye on 46092, home by 11.
15 kt+ in the forecast, 8 ft+ short-period swell, or a building ebb at the Moss Landing entrance. There's always next week.
Charge the battery, crimp four rigs, tie a spare breakaway on every sinker, freeze two blocks of ice, buy bait. Check 46042 trend and the evening coastal forecast; make the go/hold/abort call now, not at 4 a.m.
Moss Landing. Meet the boat, load two electric rigs and the battery box, radio check on 16, waypoint Z1 loaded. Out the jetties at first light.
Run west 2.5 nm along the axis. Watch the sounder drop through 600 ft, then 900. Pick a wall or the axis based on the current: a 3-lb sinker holding at 30° is the tell. Rig with squid strips and a mackerel chunk on the bottom hook, light clipped above the swivel.
Free-spool to the bottom, thumb the spool the last 100 ft so the rig lands soft, engage, lift a foot, hold. Two minutes without a tap, bounce it once. Ten minutes, wind up and reposition. Bites feel like weight, not hits; let the circle hooks load and start the motor at half speed, not full: sablefish have soft mouths and full throttle is for bait checks. Bleed, gut, ice.
Check 46092 wind. Under 10 kt: one more cycle in Z2 on the way out. Over 10: run home now. The harbor entrance on the ebb is the most dangerous water of the day.
Rinse the reel with fresh water before the salt dries, pull the battery. Fillet at the harbor cleaning station. Miso-marinate that night; you've earned it.
The 121°56.00′W meridian is the line that matters most in Monterey: it's the east wall of both no-go boxes. At Cordell the closed area is the bank itself, and the polygon above is the one to load.
Sonoma–Marin shelf from NOAA bathymetry. Heat calibrated to the trawl survey's Bodega numbers, range from Bodega Bay harbor. Red hatch = Cordell Bank GEA, exact coordinates from 50 CFR 660.79(r). Grey ring = former GCA, opened June 2026. Dots are survey hauls.NOAA bathymetry · red = Cordell GEA (exact) · dots = survey hauls
One Bodega Bay operator runs deep-drop black cod trips with the electric reels supplied, on the slope beside Cordell Bank. Six friends split a boat, nobody buys a reel, and you find out who actually likes this before anyone spends $2,000.
They run deep-drop black cod trips with electric reels near Cordell Bank, fishing 800–1,200 ft, and will target sablefish on a deep-water rockfish trip if the group asks. Their page lists the 10-fish limit and a 2–20 lb range; expect fish around 5 lb, and a bite that's consistent year-round.
Ask for the Bigeye by name: it's the only charter boat on either list with a confirmed 1 kW sounder, and 35 rod holders means three electric rigs fit anywhere. Say "black cod" when you book, not on the dock. Six people at $325 each; nobody brings gear except a cooler.
None advertises electrics or black cod. They're here in case the Bigeye is booked; you'd bring your own reels and treat it like a Monterey day with a longer run. Reel Obsession's Fort Bragg operation is worth a question: the 100-fathom line off Fort Bragg is a known black cod drift.
Every six-pack in the harbor is on the county's Sport Fishing Center directory with a phone number. Bodega Bay is about two hours from Menlo Park; the trip leaves early, so sleep there the night before.
A true canyon cutting the shelf northwest of Cordell Bank, with its head at about 1,250 ft. The walls hold the depth band on both sides and it's the closest legal deep water to the harbor.
West and north of the bank the bottom falls from 600 ft to 3,000 ft in under two miles, so the band is a narrow strip. Work it along the contour, not across it. This is where the charter says it fishes.
The bank itself is the Cordell Bank GEA: closed to all groundfish fishing, drawn on the map from the legal coordinates. Everything here is the captain's call; the boxes are for understanding the ground, not for arguing with him.
481 clean hauls in this box, sablefish in 296. Presence, median catch rate, and median fish size by depth:
The Bodega slope is a plateau from 900 to 2,000 ft, and the charter's 800–1,200 ft sits on its front edge, which is why their gear works there without a 2,000-ft reel. 2022 was a pulse year: deep hauls ran a median of 100 kg/ha, nearly all 2-lb fish, which matches the big recent year classes. Those fish are in the 4–6 lb range now, which is exactly what the operator tells you to expect.
Best hauls on the zones: 2022 at 38°10.2′N 123°24.0′W, 833 ft, 106 kg/ha of ~4 lb fish, inside B1's southern edge; 2022 at 38°14.2′N 123°31.3′W, 1,545 ft, 122 kg/ha of ~3 lb fish, on B1's west wall; 2022 at 38°21.7′N 123°35.7′W, 1,388 ft, 122 kg/ha, on the shelf break north of B1. A 2023 haul at 400 ft, 14 nm out, pulled 234 kg/ha of 2-lb fish: young fish on the shelf, not eaters yet, but proof of the numbers coming.
Same caveats as Monterey. On the map, the survey dots show where the tows happened; tap near one for its numbers.
46013 under 10 kt and swell ≤6 ft at long period; the run is 20–28 nm of open coast.
The operator will call it. If they're running and 46013 shows 15 kt building, expect a rough ride home and a shorter day.
Small-craft advisory for Point Arena to Point Reyes. Bodega is a wind machine: September 2026 was a total washout for the fleet. October, when the NW gradient relaxes, is the month to book.
Pulled from the National Weather Service each time this page opens: active marine advisories for both theaters, the current Coastal Waters Forecast, the Bay Area radar loop and the GOES-West satellite. Each forecast period is rated against the dossier's go/hold/abort thresholds: go at ≤10 kt and ≤5 ft, hold at ≤15 kt and ≤8 ft, abort above that.


The buoy site doesn't allow pages like this one to read its data directly, so these open in a tab. The rule stands: two flat days on 46013 before the Bodega call.
Reel and battery online, everything you want to hold in your hand at Hi's Tackle Box in South San Francisco. Order the reel first; stock moves.