How deep is Bolton Lake, Middle?

Bolton Lake, Middle reaches a maximum depth of 18 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 121 acres, and half of that water sits inside the 12 ft line.

Where is the deepest part of Bolton Lake, Middle?

The deepest charted water on Bolton Lake, Middle lies inside the 18 ft contour, toward the southern end of the lake. That contour encloses 1.6 acres, 1.3% 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 Bolton Lake, Middle is shallower than 12 feet?

About half. The 12 ft contour encloses 38 acres of the roughly 121 acres inside the outer 0 ft line, so the other half of the water is shallower than 12 feet. The sharpest drop is between 9 and 12 feet, where the mapped water sheds 47 acres.

How accurate is this Bolton Lake, Middle 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

Bolton Lake, Middle depth map

Bolton Lake, Middle in Vernon, Connecticut reaches a depth of 18 feet. Bolton Lake, Middle is charted here across 7 closed depth contours, from the 0 ft line down to 18 ft, enclosing about 121 acres of water. Half of that water lies inside the 12 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

Bolton Lake, Middle depth chart: 7 depth contours from 0 to 18 ft

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

Bolton Lake, Middle depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
0 ft	121 acres	100%
3 ft	113 acres	93%
6 ft	100 acres	83%
9 ft	85 acres	71%
12 ft	38 acres	31%
15 ft	14 acres	12%
18 ft	1.6 acres	1.3%

Acreages are computed from the closed CT DEEP Lake Bathymetry contour rings, with islands subtracted. Shares are of the 121 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 Bolton Lake, Middle: steep sides for its size

About 121 acres of Bolton Lake, Middle sit inside the survey's 0 ft contour, and half of that water is already gone by the 12 ft line: depth comes quickly here, with no long shallow margin before the bottom drops away. The steepest break on the chart runs from 9 down to 12 ft: 47 acres of bottom fall away across 3 ft there, which makes that band the first contour to work. The deepest 18 ft contour holds 1.6 acres, 1.3% of the mapped water, toward the southern end of the lake. At 18 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 Bolton Lake, Middle

Shallow water like Bolton Lake, Middle is usually among the first to make safe ice, and with only 1.6 acres inside the 18 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 121-acre basin, are where to start. Check ice thickness locally before you walk out.

Bolton Lake, Middle depth map FAQs

How deep is Bolton Lake, Middle?: Bolton Lake, Middle reaches a maximum depth of 18 feet in the CT DEEP Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 121 acres, and half of that water sits inside the 12 ft line.
Where is the deepest part of Bolton Lake, Middle?: The deepest charted water on Bolton Lake, Middle lies inside the 18 ft contour, toward the southern end of the lake. That contour encloses 1.6 acres, 1.3% 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 Bolton Lake, Middle is shallower than 12 feet?: About half. The 12 ft contour encloses 38 acres of the roughly 121 acres inside the outer 0 ft line, so the other half of the water is shallower than 12 feet. The sharpest drop is between 9 and 12 feet, where the mapped water sheds 47 acres.
How accurate is this Bolton Lake, Middle 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 Bolton Lake, Middle

Bolton Lake, Lower depth map · 18 ft max · 1 mi away
Shenipsit Lake depth map · 60 ft max · 5 mi away
Coventry Lake depth map · 36 ft max · 6 mi away
Crystal Lake depth map · 42 ft max · 9 mi away
Keeney Cove depth map · 24 ft max · 12 mi away

Mapped fishing venues near Bolton Lake, Middle

Bolton Lake, Middle in the venue directory covers access and fishing details for this water.

Lower Bolton Lake · 1 mi away
Bolton Lake, Lower · 1 mi away
Shenipsit Lake · 5 mi away

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