Keweenaw Bay
depth
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Depth scale
Survey readout
Keweenaw Bay is mapped to a depth of 468 ft on the NOAA NCEI survey and covers about 63,737 acres in Baraga County, Michigan.
Derived from NOAA NCEI Great Lakes bathymetry data.
The maximum depth and the “deepest” marker describe Keweenaw Bay itself. The map also renders the surrounding open-lake water inside the frame. Depths in that water reach about 534 ft.
- Deepest mapped contour
- 468 ft
- Surface area
- 63,737 acres
- Aquatic vegetation
- 0% of surface · NDVI estimate
- Public access
- Boat Launch · Rec Passport
Additional depth details17 contours
- Contour depths
- 0–468 ft
- Recorded point soundings
- No point soundings recorded in source
Other waters with a public launch on this map: Lake Keewaydin, Silver River, Roland Lake, Perrault Lake, Beaufort Lake, Huron River and 16 more. Their launches are not marked on the model — only Keweenaw Bay’s own are.
Compare with another lakeProvenance
Sources: NOAA NCEI Great Lakes Bathymetry, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL), MI DNR Boat Launches.
⚠ NOT FOR NAVIGATION. This is a recreational depth visualisation built from historical soundings, not a nautical chart. Use official NOAA charts (ENC/RNC) for navigation. Depths are referenced to low water datum and actual water levels vary.Spot an error? Send a correction
Map details & sources5 sources
All layers registered to one bounding box; positions in WGS 84.
Survey-derived depth contours drape over USGS 3DEP elevation, with a USDA NAIP aerial basemap and OpenStreetMap shoreline. Colour shows surveyed depth; dark lines are the survey's own isobaths.
- Coordinates
- 46.92500, -88.37500
- NOAA lake ID
- NOAA-GL-KEW
- Vertical exaggeration
- 8.0× below the waterline; land at true scale
- Basemap
- USDA NAIP · public domain
- Model size
- 2.3 MB
Fish you might catch
from angler catches & active stocking12 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
Northern Pike
Common Carp
Lake Trout
Walleye
Burbot
Brown Trout
Longnose Sucker
Splakestocked
Lake Whitefish
Brook Trout
Cisco
Rainbow SmeltFishing rules for this lake Beta
Size and daily limits for the 12 species found here — 12 open to harvest.
These are hook-and-line size, daily limit and season rules. Gear, spearing and bow fishing, spawning closures and rod limits are set by other Fisheries Orders and are not shown here.
From the 2026 Michigan Fishing Regulations digest (General Fishing Regulations table and notes) / FO-215.23A (eff. 2023-09-15) / FO-252.26 (eff. 2026-04-01) / FO-240.26 / FO-253.26 (eff. 2026-04-01, Great Lakes trout and salmon by management unit) · verified 2026-08-24. Regulations can change — Michigan DNR rules are the controlling source; verify current regulations before fishing. Official regulations
Notable catches
Master Angler program · 1992–2025Trophy-size fish anglers caught here and registered with the DNR — what people have actually caught, distinct from what a survey netted or the state stocked below.
Catch details by species11 species
Biggest on record
Bait: artificial lure (14) · combination (5) · live bait (3)
Method: ice fishing (32) · still fishing (12) · trolling (4) · spin casting (3)
DNR stocking
state stocking record · 2009–2025Fish the Michigan DNR has planted in this lake — what was added, distinct from what a survey netted above.
Shipwrecks in Keweenaw Bay 8 recorded · none with a verified position
Positions are published by the Michigan Underwater Preserve Council. 0 of 8 here have been verified by the state; the rest are approximate and are marked as such.
7 of these wrecks have a 3D reconstruction of the ship afloat — tap a labelled marker on the map, or the 3D preview button below. Only wrecks with a reconstruction are marked on the map; the rest are listed below.
- MorganapproximateScrew steam Yacht · lost 1928 · abandoned6 ft
- Charles H. BradleyapproximateWood Bulk Propeller · lost 1931 · stranded and burned · snorkel-accessible full reconstruction10 ft
- InternationalapproximateWood Excursion Steamer · lost 1913 · burned · snorkel-accessible full reconstruction10 ft
- Lizzie A. LawapproximateSchooner-Barge · lost 1908 · stranded · snorkel-accessible full reconstruction10 ft
- Sea FoxapproximateWooden yacht · lost 1925 · abandoned full reconstruction10 ft
- Sailor BoyapproximatePassenger Steamer · lost 1923 · burned · snorkel-accessible full reconstruction15 ft
- MediatorapproximateSchooner-Barge · lost 1898 · abandoned · snorkel-accessible full reconstruction20 ft
- UardaapproximateIron Propeller, Passenger & Freight · lost 1912 · burned · snorkel-accessible full reconstruction20 ft
Treat these as graves. Lives were lost on many Great Lakes wrecks, and human remains may still be present. Michigan’s bottomlands also hold submerged cultural sites that long predate these ships. Look, photograph, and leave everything exactly as you found it.
Removing or disturbing wreckage on Great Lakes bottomlands is a felony under Michigan Part 761, 1994 PA 451, at a fair market value of $100 or more. Positions are historical reference only — not navigation, and not dive-planning data. Wreck records are published by the Michigan Underwater Preserve Council, which publishes a guide to the Keweenaw preserve.
Bait & tackle nearby
licensed retail bait dealers · straight-line distanceKeweenaw Bay — common questions
How deep is Keweenaw Bay?
The deepest contour on the NOAA NCEI bathymetric survey of Keweenaw Bay is 468 ft. That is the deepest depth the historical survey map records, which may differ from the deepest point of the lake itself.
How big is Keweenaw Bay?
Keweenaw Bay covers about 63,737 acres in Baraga County, Michigan.
What fish are in Keweenaw Bay?
Species with survey, catch or recent-stocking evidence include brook trout, brown trout, burbot, lake trout, lake whitefish, northern pike. The page lists all 12 species and the evidence behind each.
Is there public access to Keweenaw Bay?
Yes. The Michigan DNR boat-launch data identifies 9 public access sites on Keweenaw Bay, including Baraga State Park.
