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Map of Smith Moore Wreck (Alger Underwater Preserve)
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Smith Moore Wreck (Alger Underwater Preserve)

Michigan, United States
AOW suggested21–32 m depthBoat entry

Boat dive — see Entry & access.

Smith Moore Wreck (Alger Underwater Preserve) at a glance

Smith Moore Wreck (Alger Underwater Preserve) is a advanced boat dive site in Michigan, United States with depths of 21.3–32 m (70–105 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Lake trout, Burbot, and Lake whitefish. Check the latest conditions and entry details before you go.

Wind model · graded 4h ago
—

Tap a factor for its source and model point

Site hazards: Depth (deco risk), very cold water at depth (~40 F), low light, silt inside hull, entanglement; penetration only for wreck-trained divers

Read the full hazards ↓

Dive windows this week

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

Favorable windowModerate window— no window

First light 5:45 · Sunrise 6:20 · Sunset 21:25

Source: Open-Meteo wind · graded 4h 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.

What Divers Say

Known for: Lake trout, Burbot
Best time: July-September

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. Jan52% 14 kn
  2. Feb39% 15 kn
  3. Mar53% 15 kn
  4. Apr51% 14 kn
  5. May73% 12 kn
  6. Jun71% 11 kn
  7. Jul90% 10 kn
  8. Aug81% 11 kn
  9. Sep82% 11 kn
  10. Oct43% 15 kn
  11. Nov37% 16 kn
  12. Dec43% 16 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 troutCommonly seen
  • BurbotCommonly seen
  • Lake whitefishOccasionally seen
  • Coho salmonRarely seen

Fills & rentals nearby

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

Site details

The Smith Moore was a 230-ft wooden steam barge that sank in 1889 in the East Channel between Grand Island and the mainland after a collision, and is the deepest and best-known wreck in the Alger Underwater Preserve near Munising. She sits upright and largely intact in 70-105 ft of water with the deck reached around 80 ft. Divers find her boiler, engine, deck winch and broken mast, and open hatches allow trained divers a look into the holds.

boatwreck

Depth (deco risk), very cold water at depth (~40 F), low light, silt inside hull, entanglement; penetration only for wreck-trained divers

Reviews

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