How deep is Bonne Terre Mine?

Bonne Terre Mine ranges from 12.2 to 18.3 metres deep (40–60 feet). It is a freshwater site rated as intermediate difficulty. Depths vary across the site, so plan your profile to your training and verify conditions locally.

Is Bonne Terre Mine a shore dive or a boat dive?

Bonne Terre Mine 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. Basic facilities are recorded at or near 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.

Can beginners dive Bonne Terre Mine?

Bonne Terre Mine is rated as intermediate difficulty, which may not suit new divers. Listed depths run from 12.2 to 18.3 metres (40–60 feet). Access is from shore, with the entry recorded as an easy walk-in. Consider your experience level, conditions, and local guidance before planning.

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IntermediateShore entry

Bonne Terre Mine

Missouri, United StatesDirections

Open Water suggested12–18 m depthShore entry

Bonne Terre Mine at a glance

Bonne Terre Mine is an intermediate shore dive site in Missouri, United States with depths of 12.2–18.3 m (40–60 ft). Typically most favorable Aug · from 3 years of archive data. Check the latest conditions and entry details before you go.

Wind model · graded 14h ago

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Tap a factor for its source and model point

Site hazards: Overhead mine environment, cold 58 F water, unlit side passages, depth on advanced trails

Read the full hazards ↓

Dive windows this week

Best: Thu

Fri7:00–20:00

Sat7:00–20:00

Sun7:00–19:00

Mon7:00–20:00

Tue11:00–19:00

Wed7:00–20:00

Thu7:00–20:00

Favorable windowModerate window— no window

First light 6:14 · Sunrise 6:40 · Sunset 19:16

Source: Open-Meteo wind · graded 14h 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.

Dived here today — did the forecast match?

What Divers Say

Best time: Year-round; conditions are constant

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.

Jan90% 10 kn
Feb91% 10 kn
Mar73% 11 kn
Apr67% 11 kn
May92% 9 kn
Jun96% 8 kn
Jul96% 7 kn
Aug99% 7 kn
Sep97% 7 kn
Oct88% 9 kn
Nov88% 10 kn
Dec86% 10 kn

August 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.

Data updated June 2026

Site details

A flooded former lead mine in Bonne Terre, MO, holding a billion-gallon underground lake with around 100 ft visibility and a constant 58 F water temperature. Twenty-four numbered dive trails wind past pillars, ore carts, scaffolding and other mining artifacts; all dives are guided by staff dive guides with an assigned safety diver. New visitors must complete trails 1 and 2 before progressing, and advanced 'Bear Trail' dives venture into unlit sections for proven divers. Operated by West End Diving as a commercial dive resort.

cave

Overhead mine environment, cold 58 F water, unlit side passages, depth on advanced trails

Reviews

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