How deep is Congamond Lakes?

Congamond Lakes reaches a maximum depth of 40 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 6 closed depth contours over about 470 acres, and half of that water sits inside the 20 ft line.

Where is the deepest part of Congamond Lakes?

The deepest charted water on Congamond Lakes lies inside the 40 ft contour, toward the northeastern corner of the lake. That contour encloses under an acre, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.

How much of Congamond Lakes is shallower than 20 feet?

About half. The 20 ft contour encloses 147 acres of the roughly 470 acres inside the outer 0 ft line, so the other half of the water is shallower than 20 feet. The sharpest drop is between 0 and 10 feet, where the mapped water sheds 193 acres.

How accurate is this Congamond Lakes depth map?

The contours come from the CT DEEP Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. 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. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Connecticut lake depth maps

Congamond Lakes depth map

Congamond Lakes in Suffield, Mass, Connecticut reaches a depth of 40 feet. Congamond Lakes is charted here across 6 closed depth contours, from the 0 ft line down to 40 ft, enclosing about 470 acres of water. Half of that water lies inside the 20 ft line, and only under an acre lie inside the deepest one. Every contour is on the interactive map below, free and without an account.

Data: CT DEEP Lake Bathymetry (CC0). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated August 19, 2026

Congamond Lakes depth chart: 6 depth contours from 0 to 40 ft

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

Congamond Lakes depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
0 ft	470 acres	100%
10 ft	277 acres	59%
20 ft	147 acres	31%
30 ft	44 acres	9.4%
35 ft	6.3 acres	1.3%
40 ft	under 1 acre	under 1%

Acreages are computed from the closed CT DEEP Lake Bathymetry contour rings, with islands subtracted. Shares are of the 470 acres inside the outermost charted contour (the 0 ft line), which is the outer edge of the mapped water, several state files carry no 0 ft shoreline line, so this is not the same as a share of the lake's published surface area.

Fishing Congamond Lakes: an evenly graded bottom

About 470 acres of Congamond Lakes sit inside the survey's 0 ft contour, and half of that water is already gone by the 20 ft line: the bottom falls away at a steady rate rather than shelving off or dropping in one step. The steepest break on the chart runs from 0 down to 10 ft: 193 acres of bottom fall away across 10 ft there, which makes that band the first contour to work. The 40 ft contour, toward the northeastern corner of the lake, encloses under an acre of water, a single pocket rather than a basin, but one worth a drift over in high summer. With 40 ft at its deepest there is no true cold-water layer here, so structure does the work the thermocline does elsewhere: fish the points and inside turns where the 0 and 10 ft lines pinch together, hardest in early season and again as fish follow bait back down in autumn.

Ice fishing on Congamond Lakes

Congamond Lakes's 40 ft is a workable ice depth, enough water to hold fish all winter, without the slow freeze-up of a big basin. First light belongs on the 40 ft hole, all 0.9 acres of it; as the sun gets up, move onto the 0–10 ft break, and spend the middle of the day on the flats inside the 20 ft line. Check ice thickness locally before you walk out.

Congamond Lakes depth map FAQs

How deep is Congamond Lakes?: Congamond Lakes reaches a maximum depth of 40 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 6 closed depth contours over about 470 acres, and half of that water sits inside the 20 ft line.
Where is the deepest part of Congamond Lakes?: The deepest charted water on Congamond Lakes lies inside the 40 ft contour, toward the northeastern corner of the lake. That contour encloses under an acre, under 1% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.
How much of Congamond Lakes is shallower than 20 feet?: About half. The 20 ft contour encloses 147 acres of the roughly 470 acres inside the outer 0 ft line, so the other half of the water is shallower than 20 feet. The sharpest drop is between 0 and 10 feet, where the mapped water sheds 193 acres.
How accurate is this Congamond Lakes depth map?: The contours come from the CT DEEP Lake Bathymetry survey, retrieved August 2026 and last rebuilt on August 19, 2026. 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. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.

Depth maps for lakes near Congamond Lakes

Rainbow Reservoir depth map · 35 ft max · 9 mi away
McDonough Lake depth map · 50 ft max · 14 mi away
West Branch Reservoir depth map · 90 ft max · 14 mi away
Colebrook River Reservoir depth map · 130 ft max · 15 mi away
Twin Lakes South depth map · 18 ft max · 15 mi away

Mapped fishing venues near Congamond Lakes

Congamond Lakes in the venue directory covers access and fishing details for this water.

McLean Game Refuge · 6 mi away
Rainbow Reservoir · 9 mi away
McDonough Lake · 14 mi away

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