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Map of SS Cumberland Wreck
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IntermediateBoat entry

SS Cumberland Wreck

Michigan, United States
Open Water suggestedVery cold water (1-3 C below 50 ft)6–24 m depthBoat entry

Boat dive — see Entry & access.

SS Cumberland Wreck at a glance

SS Cumberland Wreck is a intermediate boat dive site in Michigan, United States with depths of 6.1–24.4 m (20–80 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Lake trout and Burbot. Check the latest conditions and entry details before you go.

Wind model · graded 14h ago

Tap a factor for its source and model point

Site hazards: Very cold water (1-3 C below 50 ft) · Extreme remoteness

All 4 hazards ↓

Dive windows this week

Best: Wed
Tue7:00–22:00
Wed7:00–22:00
Thu7:00–22:00
Fri7:00–22:00
Sat7:00–22:00
Sun7:00–22:00
Mon7:00–22:00

Favorable windowModerate window— no window

First light 5:52 · Sunrise 6:29 · Sunset 21:38

Source: Open-Meteo wind · graded 14h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

What Divers Say

Best time: June-September on calm days — the reef is very exposed.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan81% 11 kn
  2. Feb76% 11 kn
  3. Mar78% 11 kn
  4. Apr72% 11 kn
  5. May87% 10 kn
  6. Jun91% 9 kn
  7. Jul98% 9 kn
  8. Aug96% 9 kn
  9. Sep93% 9 kn
  10. Oct82% 11 kn
  11. Nov74% 12 kn
  12. Dec65% 13 kn

July hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • Lake troutOccasionally seen
  • BurbotOccasionally seen

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Site details

The Cumberland was a wooden side-wheel passenger steamer that grounded on Rock of Ages Reef at Isle Royale's western tip in July 1877 and broke up. Large sections of her wooden hull, her huge side-wheel, and a boiler lie in 20-80 ft, intermingled with wreckage of the steel freighter Henry Chisholm, which struck the same reef 21 years later. The two-wrecks-in-one site is a fascinating archaeology dive at moderate depth, though the reef is fully exposed to Lake Superior weather.

boatreefwreck

Very cold water (1-3 C below 50 ft)

Extreme remotenessnearest chambers Minneapolis/Milwaukee

Exposed shoal at the far west end of Isle Royale; swell and fast-changing weather

Confusing intermingled debris fields (Cumberland and Henry Chisholm wreckage overlap)


Reviews

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