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Shore entry

Portage Quarry

Ohio, United States
Open Water suggested3–21 m depthShore entry

Portage Quarry at a glance

Portage Quarry is a shore dive site in Ohio, United States with depths of 3–21.3 m (10–70 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Smallmouth bass, Largemouth bass, and Rainbow trout. 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: No current dive support on site; trespassing if entered while closed; thermocline and silt when it operated

Read the full hazards ↓

Dive windows this week

Best: Fri
Sun7:00–21:00
Mon7:00–21:00
Tue7:00–21:00
Wed7:00–21:00
Thu7:00–21:00
Fri7:00–21:00
Sat7:00–21:00

Favorable windowModerate window— no window

First light 5:52 · Sunrise 6:24 · Sunset 20:57

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: Smallmouth bass, Largemouth bass, Bluegill

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. Jan77% 12 kn
  2. Feb61% 13 kn
  3. Mar59% 14 kn
  4. Apr58% 13 kn
  5. May77% 11 kn
  6. Jun80% 11 kn
  7. Jul87% 9 kn
  8. Aug89% 10 kn
  9. Sep94% 9 kn
  10. Oct77% 11 kn
  11. Nov71% 12 kn
  12. Dec72% 12 kn

September 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

  • Smallmouth bassCommonly seen
  • Largemouth bassCommonly seen
  • Rainbow troutOccasionally seen
  • KoiRarely seen
  • BluegillCommonly seen

Fills & rentals nearby

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

Site details

Portage Quarry Recreation Club, just south of Bowling Green, was for decades one of Ohio's most popular dive quarries: a 23-acre spring-flooded limestone pit with average depths of 50-60 feet and a maximum around 70 feet. Attractions sunk for divers included a 68-foot Hansa jet, a bladeless helicopter, a school bus, a grain silo and a swim-through semi-trailer. The property changed hands and the recreation club is now listed as closed; divers should confirm status before planning a visit.

shorewreck

No current dive support on site; trespassing if entered while closed; thermocline and silt when it operated

Reviews

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