← Return to Favorite Dive Summary
Return to Explore Dive Sites← Back to dive site search
LakeReefTechnical DiveFreshwaterSource Checked

NBM Dive Site Resource

Gold Mine Pinnacle

Marquette, Michigan, United States

TECHNICAL DIVE REQUIRED FOR THE DEEPER SECTIONS — Officially inventoried reef / natural formation in Marquette Underwater Preserve. Verify current conditions, access, and mooring status before diving.

Save this dive site to your free member profile.

Historic Picture Placeholder

Old-fashioned maritime line drawing reserved for a future historic photograph
Historic Picture PlaceholderHistoric photograph pending research and rights review
WaterFreshwater
AccessConfirm current access, weather, regulations, and mooring status with the preserve or a local dive operator.
ExperienceMixed-depth site — the deeper sections exceed recreational limits and require appropriate technical and decompression training
Maximum depth12–150 ft
Best seasonSeasonal details pending
VisibilityVisibility varies

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

Published reference location

Location map

The marker shows the public coordinates associated with this profile. Confirm current access, moorings, and departure details before the dive.
Published reference coordinates46.58967, -87.36250
Open in Google Maps ↗
Map zoom level 6 of 11

Map data © OpenStreetMap contributors

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

A source-checked Great Lakes dive location within Marquette Underwater Preserve.

Regional context

Located within

Before you arrive

Access notes

The official inventory establishes this location within the preserve; access method and seasonal mooring availability can change.

Plan within your training

Conditions and hazards

Cold freshwater, limited visibility, changing weather and currents, boat traffic, and site-specific depth hazards. The deepest sections may create decompression obligations; cold water, limited visibility, entanglement and overhead wreckage require site-specific planning.

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.