How deep is Quonnipaug Lake?

Quonnipaug Lake reaches a maximum depth of 42 feet, according to the CT DEEP Lake Bathymetry survey. Most of the lake is shallower, with 7 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of Quonnipaug Lake?

The deepest surveyed water on Quonnipaug Lake sits toward the northeastern corner of the lake, inside the 42 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Quonnipaug Lake depth map?

The contours come from the CT DEEP Lake Bathymetry survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Connecticut lake depth maps

Quonnipaug Lake depth map

Quonnipaug Lake in Guilford, Connecticut reaches a depth of 42 feet. The official Connecticut survey maps 7 depth bands across 33 contour lines. This free map of Quonnipaug Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Quonnipaug Lake depth chart: 7 depth bands to 42 ft

Data: CT DEEP Lake Bathymetry (CC0), retrieved August 2026 · depths change over time · not for navigation

Quonnipaug Lake depth chart data
Depth contour	Share of mapped area inside it
6 ft	about 100%
12 ft	about 85%
18 ft	about 71%
24 ft	about 53%
30 ft	about 19%
42 ft	about 19%

Share of the surveyed surface area enclosed by each depth contour, computed from the CT DEEP Lake Bathymetry data.

How to fish Quonnipaug Lake: mid-depth structure water

With 42 feet at its deepest, the fish-holding structure is the mid-depth contour: drop-offs, points and inside turns between the shallows and the basin. Use the 7 mapped depth bands to find where contour lines pinch together, which marks the sharpest breaks, and work those edges first, especially early season and again in the fall as fish follow bait between depths.

Ice fishing on Quonnipaug Lake

Quonnipaug Lake is a classic ice-fishing depth: enough water to hold fish all winter without the long freeze-up of a deep basin. Start on the deepest mapped hole at first light, then work the breaks where contour lines tighten. Mid-depth flats near the basin edge produce through midday. Always verify ice thickness locally before walking out.

Quonnipaug Lake depth map FAQs

How deep is Quonnipaug Lake?: Quonnipaug Lake reaches a maximum depth of 42 feet, according to the CT DEEP Lake Bathymetry survey. Most of the lake is shallower, with 7 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of Quonnipaug Lake?: The deepest surveyed water on Quonnipaug Lake sits toward the northeastern corner of the lake, inside the 42 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Quonnipaug Lake depth map?: The contours come from the CT DEEP Lake Bathymetry survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Depth maps for lakes near Quonnipaug Lake

Millers Pond depth map · 18 ft max · 7 mi away
Dooley Pond depth map · 15 ft max · 9 mi away
Beseck Lake depth map · 24 ft max · 9 mi away
Pataconk Reservoir depth map · 15 ft max · 9 mi away
Black Pond depth map · 21 ft max · 10 mi away

Mapped fishing venues near Quonnipaug Lake

Quonnipaug Lake in the venue directory covers access and fishing details for this water.

Millers Pond · 7 mi away
Dooley Pond · 9 mi away
Beseck Lake · 9 mi away

Fishing in Connecticut needs a state license: US fishing license guide · all Connecticut venues