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Map of SS Robert Wallace Wreck
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IntermediateBoat entry

SS Robert Wallace Wreck

Minnesota, United States
Extreme depth (240 ft / 73 m) requiring trimix and staged decompression, well beyond recreational limits; cold, dark Lake Superior water with poor visibility reported at the site; wreck lies near commercial shipping lanes; long offshore boat run exposed to Lake Superior weather; the hull is cracked/separated, so treat any penetration as an overhead hazard. Protected historic site (NRHP 2009)73 m depthBoat entry

Boat dive — see Entry & access.

SS Robert Wallace Wreck at a glance

SS Robert Wallace Wreck is a intermediate boat dive site in Minnesota, United States with depths of up to 73 m (239 ft). Typically most favorable Jul · from 3 years of archive data. Check the latest conditions and entry details before you go.

Wind model · graded 3h ago
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Tap a factor for its source and model point

Site hazards: Extreme depth (240 ft / 73 m) requiring trimix and staged decompression, well beyond recreational limits; cold, dark Lake Superior water with poor visibility reported at the site; wreck lies near commercial shipping lanes; long offshore boat run exposed to Lake Superior weather; the hull is cracked/separated, so treat any penetration as an overhead hazard. Protected historic site (NRHP 2009)

Read the full hazards ↓

Dive windows this week

Best: Fri
Sun6:00–19:00
Mon6:00–21:00
Tue6:00–21:00
Wed6:00–21:00
Thu6:00–21:00
Fri6:00–21:00
Sat6:00–21:00

Favorable windowModerate window— no window

First light 5:03 · Sunrise 5:40 · Sunset 20:46

Source: Open-Meteo wind · graded 3h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

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.

Best months, historically

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

  1. Jan22% 18 kn
  2. Feb22% 18 kn
  3. Mar17% 19 kn
  4. Apr19% 19 kn
  5. May19% 18 kn
  6. Jun32% 15 kn
  7. Jul60% 14 kn
  8. Aug51% 14 kn
  9. Sep38% 15 kn
  10. Oct29% 17 kn
  11. Nov23% 18 kn
  12. Dec24% 19 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 recorded at this site

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

Fills & rentals nearby

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

Site details

wooden steamship wrecked in Lake Superior in 1902

wreck

Extreme depth (240 ft / 73 m) requiring trimix and staged decompression, well beyond recreational limits; cold, dark Lake Superior water with poor visibility reported at the site; wreck lies near commercial shipping lanes; long offshore boat run exposed to Lake Superior weather; the hull is cracked/separated, so treat any penetration as an overhead hazard. Protected historic site (NRHP 2009) — artifact removal prohibited by Minnesota law.

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