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Map of Turkey Ridge Dive Site (Yokum Quarry)
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Shore entry

Turkey Ridge Dive Site (Yokum Quarry)

Iowa, United States
Open Water suggested2–11 m depthShore entry

Turkey Ridge Dive Site (Yokum Quarry) at a glance

Turkey Ridge Dive Site (Yokum Quarry) is a shore dive site in Iowa, United States with depths of 1.5–10.7 m (5–35 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Bluegill, Largemouth bass, and Crappie. 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: Silty bottom if finning carelessly; cold water below thermocline

Read the full hazards ↓

Dive windows this week

Best: Fri
Sun6:00–21:00
Mon6:00–21:00
Tue6:00–21:00
Wed6:00–21:00
Thu7:00–21:00
Fri7:00–21:00
Sat7:00–21:00

Favorable windowModerate window— no window

First light 5:23 · Sunrise 5:56 · Sunset 20:36

Source: Open-Meteo wind · graded 4h 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

Known for: Bluegill, Largemouth bass
Best time: Late spring through fall

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. Jan80% 11 kn
  2. Feb71% 13 kn
  3. Mar56% 13 kn
  4. Apr37% 15 kn
  5. May70% 12 kn
  6. Jun72% 11 kn
  7. Jul90% 9 kn
  8. Aug91% 10 kn
  9. Sep92% 10 kn
  10. Oct65% 13 kn
  11. Nov73% 12 kn
  12. Dec83% 11 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

  • BluegillCommonly seen
  • Largemouth bassCommonly seen
  • CrappieOccasionally seen

Fills & rentals nearby

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

Site details

A small flooded limestone quarry in the Turkey Ridge Wildlife Area southwest of Janesville, north of Cedar Falls, managed as a public dive site. It has scuba staging platforms on shore, an underwater training platform at about 17 ft, and DNR-sunk fish cribs. Maximum depth is roughly 31-35 ft with average visibility of 16-20 ft.

shore

Silty bottom if finning carelessly; cold water below thermocline


Reviews

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