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FreshwaterLake DiveSource Checked

NBM Dive Site Resource

Bigelow Pond

Union, Connecticut, United States

A documented Connecticut freshwater dive destination retained with an explicit warning that state boat launches cannot be used as scuba entry points.

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Historic Picture Placeholder

Old-fashioned maritime line drawing reserved for a future historic photograph
Historic Picture PlaceholderHistoric photograph pending research and rights review
WaterFreshwater
AccessLegal shore, private or boat access arranged independently of a state launch ramp.
ExperienceCertified low-visibility freshwater divers
Maximum depthGenerally shallow; confirm current local briefing and chosen area
Best seasonSeasonal access and water conditions vary.
VisibilityCommonly limited and easily disturbed; verify current local report.

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.

Largemouth Bass (Micropterus salmoides) — photograph
Established pond species

Largemouth Bass

Micropterus salmoides

Connecticut State Parks lists largemouth bass at Bigelow Hollow. Divers may see them in the pond’s shallow wildlife areas and near submerged cover.

USFWS Mountain Prairie

Open Aquatic Life Profile →

Bluegill (Lepomis macrochirus) — photograph
Established pond species

Bluegill

Lepomis macrochirus

Connecticut State Parks lists bluegill among Bigelow Hollow sunfish. They are most likely around vegetation, shoreline cover, and warmer shallow water.

USFWS Mountain Prairie

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Walleye (Sander vitreus) — photograph
Documented pond species

Walleye

Sander vitreus

Connecticut State Parks lists walleye in the Bigelow Hollow waters. Encounters are more likely in deeper or lower-light areas and are never guaranteed.

Sam Stukel/USFWS

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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 coordinates41.99478, -72.12675
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Map zoom level 1 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

Local freshwater practice, training potential and cold-water ecology where legal access is arranged.

Before you arrive

Access notes

Documented regional freshwater dive. Verify that scuba and the intended entry are currently allowed; do not use a state boat-launch ramp as a scuba entry.

Plan within your training

Conditions and hazards

Boat traffic, low visibility, cold, thermoclines, entanglement, submerged obstructions, separation and illegal launch-ramp entry.

At the site

Facilities and support

No scuba-specific onsite facilities are assumed.

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.