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FreshwaterQuarryCounty ParkTraining SiteUnverified

NBM Dive Site Resource

Lannon Quarry — Menomonee Park

Menomonee Falls, Wisconsin, United States

A former Lannon-stone quarry in Menomonee Park used for scuba training and recreational shore dives.

Save this dive site to your free member profile.

Quarry Picture Placeholder

Generic flooded quarry used until a photograph of this dive site is available
Quarry Picture PlaceholderGeneric quarry image — site photograph pending
WaterFreshwater
AccessCounty-park access requires both vehicle admission and a scuba permit.
ExperienceCertified divers; training appropriate to cold water, low visibility and site-specific hazards.
Maximum depthMaximum depth about 50 ft / 15 m according to the current local guide.
Best seasonConfirm current hours, permits, seasonal closures and ice conditions.
VisibilityVariable and easily reduced by algae, runoff or disturbed silt.

Aquatic life at this dive site

What divers may encounter

Three reviewed connections are featured here. Sightings vary by season, conditions, and chance, so they are never guaranteed.

Profile connection reserved

Aquatic life research in progress

NBM is reviewing a likely local species for this position.

Profile connection reserved

Aquatic life research in progress

NBM is reviewing a likely local species for this position.

Profile connection reserved

Aquatic life research in progress

NBM is reviewing a likely local species for this position.

Site media

Photographs

Three views rotate from the published gallery on each visit.
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending

Contributor media

Dive videos

Three featured video positions are reserved on every profile.
Dive-site video pending
Dive-site video pending
Dive-site video pending

Recent field observations

Diver-reported temperatures

Automatically checked observations from dives during the past 14 days. Three reports are visible at a time; scroll for more.
Automatically checked
No recent diver reports from the past 14 days

A report that passes the automatic checks will appear here with the dive date, diver’s display name, and temperatures at each depth.

Reports are automatically checked for plausible dates, depths, and temperatures. They are observations, not forecasts; confirm conditions before diving.

Diver field observation

Report temperatures

Reports publish automatically when the date, depths, and temperatures pass the checks. You must be signed in to submit.

Depth readings

Why divers know this place

Highlights

Flooded quarry topography, training features and freshwater ecology.

Quarry-only module

Quarry layout and services

This section appears only for quarries and mines, with the practical details divers need for entries, training areas, submerged features, surface support, and current operations.

Current operating status
Confirm current hours, permits, seasonal closures and ice conditions.
Submerged attractions
Flooded quarry topography, training features and freshwater ecology.
Onsite dive services
Facilities vary; verify toilets, changing areas, fills and rentals before travel.
Surface facilities
Facilities vary; verify toilets, changing areas, fills and rentals before travel.

Before you arrive

Access notes

Register as required, use the designated west-side dive area and follow current Waukesha County rules.

Plan within your training

Conditions and hazards

Cold water, thermoclines, silt, entanglement, steep quarry walls and limited emergency access.

At the site

Facilities and support

Facilities vary; verify toilets, changing areas, fills and rentals before travel.

Independent resource notice

This record is a starting point for independent verification. Access, closures, moorings, weather, currents, depth, visibility, operator availability, and site conditions can change without notice. Confirm current information with the responsible operator, property owner, managing authority, or another qualified local source before planning or attempting a dive.