How deep is Green Falls Reservoir?

Green Falls Reservoir reaches a maximum depth of 24 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 9 closed depth contours over about 48 acres, and half of that water sits inside the 9 ft line.

Where is the deepest part of Green Falls Reservoir?

The deepest charted water on Green Falls Reservoir lies inside the 24 ft contour, toward the southern end of the lake. That contour encloses 1.6 acres, 3.4% 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 Green Falls Reservoir is shallower than 9 feet?

About half. The 9 ft contour encloses 24 acres of the roughly 48 acres inside the outer 0 ft line, so the other half of the water is shallower than 9 feet. The sharpest drop is between 0 and 3 feet, where the mapped water sheds 10 acres.

How accurate is this Green Falls Reservoir 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

Green Falls Reservoir depth map

Green Falls Reservoir in Voluntown, Connecticut reaches a depth of 24 feet. Green Falls Reservoir is charted here across 9 closed depth contours, from the 0 ft line down to 24 ft, enclosing about 48 acres of water. Half of that water lies inside the 9 ft line, and only 1.6 acres 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

Green Falls Reservoir depth chart: 9 depth contours from 0 to 24 ft

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

Green Falls Reservoir depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
0 ft	48 acres	100%
3 ft	38 acres	78%
6 ft	30 acres	62%
9 ft	24 acres	49%
12 ft	18 acres	38%
15 ft	14 acres	28%
18 ft	8.2 acres	17%
21 ft	5 acres	10%
24 ft	1.6 acres	3.4%

Acreages are computed from the closed CT DEEP Lake Bathymetry contour rings, with islands subtracted. Shares are of the 48 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 Green Falls Reservoir: an evenly graded bottom

Inside its outermost 0 ft contour the survey charts about 48 acres of Green Falls Reservoir, with the 9 ft line enclosing half of it, so the bottom loses depth gradually and evenly, with no broad shelf and no single abrupt drop. The sharpest change on the chart is between 0 and 3 ft, where the mapped water loses 10 acres in 3 ft of depth, that band is the contour to work first, because it is where the bottom stops being flat. The deepest 24 ft contour holds 1.6 acres, 3.4% of the mapped water, toward the southern end of the lake. At 24 ft top to bottom, weed growth shapes this water more than depth does, but the 1.6-acre deep spot still concentrates fish in the heat of summer, and the one-contour depressions on the chart are the ones most anglers row straight over.

Ice fishing on Green Falls Reservoir

Shallow water like Green Falls Reservoir is usually among the first to make safe ice, and with only 1.6 acres inside the 24 ft contour the fish have very little deep water to spread into once the weed beds die back. That hole, and the subtle single-contour depressions across the 48-acre basin, are where to start. Check ice thickness locally before you walk out.

Green Falls Reservoir depth map FAQs

How deep is Green Falls Reservoir?: Green Falls Reservoir reaches a maximum depth of 24 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 9 closed depth contours over about 48 acres, and half of that water sits inside the 9 ft line.
Where is the deepest part of Green Falls Reservoir?: The deepest charted water on Green Falls Reservoir lies inside the 24 ft contour, toward the southern end of the lake. That contour encloses 1.6 acres, 3.4% 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 Green Falls Reservoir is shallower than 9 feet?: About half. The 9 ft contour encloses 24 acres of the roughly 48 acres inside the outer 0 ft line, so the other half of the water is shallower than 9 feet. The sharpest drop is between 0 and 3 feet, where the mapped water sheds 10 acres.
How accurate is this Green Falls Reservoir 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 Green Falls Reservoir

Beach Pond depth map · 60 ft max · 3 mi away
Billings Lake depth map · 30 ft max · 4 mi away
Wyassup Lake depth map · 24 ft max · 4 mi away
Pachaug Pond depth map · 15 ft max · 6 mi away
Hopeville Pond depth map · 15 ft max · 8 mi away

Mapped fishing venues near Green Falls Reservoir

Green Falls Reservoir in the venue directory covers access and fishing details for this water.

Beach Pond · 3 mi away
Billings Lake · 4 mi away
Wyassup Lake · 4 mi away

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