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 Largemouth bass, Crappie, and Bluegill. Check the latest conditions and entry details before you go.
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Site hazards: Silty bottom if finning carelessly; cold water below thermocline
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First light 6:17 · Sunrise 6:46 · Sunset 19:27
Source: Open-Meteo wind · graded 14h ago
Forecast only — always assess conditions on site.
Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
Based on community reviews and site data. Conditions vary — always verify before diving.
What conditions have historically been typical at this site, month by month — not a forecast.
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.
Species noted at this site — not a promise of what you’ll encounter.
No dive shops mapped within 25 km. Know one? Add it to the map.
Data updated July 2026
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.
Silty bottom if finning carelessly; cold water below thermocline
Turkey Ridge Dive Site (Yokum Quarry) ranges from 1.5 to 10.7 metres deep (5–35 feet) — a shallow dive. It is a freshwater site. Depths vary across the site, so plan your profile to your training and verify conditions locally.
Turkey Ridge Dive Site (Yokum Quarry) is a shore dive — you can enter from land. The entry is recorded as an easy walk-in. The entry area is recorded as sheltered from surge. No facilities are recorded at the site, and cell service is recorded as good. Entry details and parking notes, where known, are listed in the access section of this page.
The best time to dive Turkey Ridge Dive Site (Yokum Quarry) is typically Late spring through fall. Seasonal closures are recorded: Open sunrise to sunset, April through November. Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.
Divers at Turkey Ridge Dive Site (Yokum Quarry) in United States commonly report sightings of Largemouth bass, Crappie, and Bluegill. Largemouth bass and Bluegill are recorded as common sightings, while Crappie is reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.
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