MN · ranked by public data

The 9 Deepest Lakes in Lyon County, Minnesota

9 Lyon County lakes are at least 50 NHD-mapped acres with a DNR-documented depth, out of 28 documented lakes in the county.

122 ft
193 acres
Lyon County, MN
East Twin Lake
limitedDepth map
44.22, -96.05193 acres | 22 ft max0 public access pointsSpecies pending
22 ft maximum depth · 193 acres
211 ft
338 acres
Lyon County, MN
School Grove Lake
limitedDepth map
44.55, -95.61338 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 338 acres
311 ft
251 acres
Lyon County, MN
Lady Slipper Lake
limitedDepth map
44.57, -95.63251 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 251 acres
411 ft
63 acres
Lyon County, MN
Clear Lake
limitedDepth map
44.33, -95.9563 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 63 acres
59 ft
145 acres
Lyon County, MN
Goose Lake
limitedDepth map
44.38, -96.04145 acres | 9 ft max0 public access pointsSpecies pending
9 ft maximum depth · 145 acres
68 ft
396 acres
Lyon County, MN
Lake Yankton
limitedDepth map
44.25, -95.87396 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 396 acres
78 ft
371 acres
Lyon County, MN
Rock Lake
limitedDepth map
44.28, -95.94371 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 371 acres
88 ft
164 acres
Lyon County, MN
Island Lake
limitedDepth map
44.38, -96.01164 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 164 acres
97 ft
367 acres
Lyon County, MN
Cottonwood Lake
limitedDepth map
44.62, -95.68367 acres | 7 ft max0 public access pointsSpecies pending
7 ft maximum depth · 367 acres

Methodology

How this list is built

Ranked by the official maximum depth in Minnesota DNR LakeFinder records; where none is published, the deepest mapped contour from MN DNR survey bathymetry stands in (contours can slightly understate depth, never overstate it).
Only lakes with published Minnesota DNR survey bathymetry on LakeList can rank (about 1,500 lakes). Deep border waters without a published DNR depth record — Saganaga Lake among them — are not listed rather than guessed at.
Lakes under 50 acres — or without a confidently matched USGS NHD polygon for acreage — are excluded from rankings.
Public access inventories are not yet tracked for Minnesota here, so access is never shown or ranked.

FAQ

Lyon County lake records

What is the deepest lake in Lyon County?

East Twin Lake — East Twin Lake in Lyon County has the deepest documented maximum depth of any ranked Lyon County lake, at 22 feet in Minnesota DNR records.

Deepest lakes statewide Biggest lakes in Lyon County All Lyon County lakes

Source data: Minnesota DNR LakeFinder records and MN DNR survey bathymetry, with acreage from USGS National Hydrography Dataset polygons, as aggregated by LakeList.Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.

MN · ranked by public data

The 9 Deepest Lakes in Lyon County, Minnesota

9 Lyon County lakes are at least 50 NHD-mapped acres with a DNR-documented depth, out of 28 documented lakes in the county.

122 ft
193 acres
Lyon County, MN
East Twin Lake
limitedDepth map
44.22, -96.05193 acres | 22 ft max0 public access pointsSpecies pending
22 ft maximum depth · 193 acres
211 ft
338 acres
Lyon County, MN
School Grove Lake
limitedDepth map
44.55, -95.61338 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 338 acres
311 ft
251 acres
Lyon County, MN
Lady Slipper Lake
limitedDepth map
44.57, -95.63251 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 251 acres
411 ft
63 acres
Lyon County, MN
Clear Lake
limitedDepth map
44.33, -95.9563 acres | 11 ft max0 public access pointsSpecies pending
11 ft maximum depth · 63 acres
59 ft
145 acres
Lyon County, MN
Goose Lake
limitedDepth map
44.38, -96.04145 acres | 9 ft max0 public access pointsSpecies pending
9 ft maximum depth · 145 acres
68 ft
396 acres
Lyon County, MN
Lake Yankton
limitedDepth map
44.25, -95.87396 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 396 acres
78 ft
371 acres
Lyon County, MN
Rock Lake
limitedDepth map
44.28, -95.94371 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 371 acres
88 ft
164 acres
Lyon County, MN
Island Lake
limitedDepth map
44.38, -96.01164 acres | 8 ft max0 public access pointsSpecies pending
8 ft maximum depth · 164 acres
97 ft
367 acres
Lyon County, MN
Cottonwood Lake
limitedDepth map
44.62, -95.68367 acres | 7 ft max0 public access pointsSpecies pending
7 ft maximum depth · 367 acres

Methodology

How this list is built

Ranked by the official maximum depth in Minnesota DNR LakeFinder records; where none is published, the deepest mapped contour from MN DNR survey bathymetry stands in (contours can slightly understate depth, never overstate it).
Only lakes with published Minnesota DNR survey bathymetry on LakeList can rank (about 1,500 lakes). Deep border waters without a published DNR depth record — Saganaga Lake among them — are not listed rather than guessed at.
Lakes under 50 acres — or without a confidently matched USGS NHD polygon for acreage — are excluded from rankings.
Public access inventories are not yet tracked for Minnesota here, so access is never shown or ranked.

FAQ

Lyon County lake records

What is the deepest lake in Lyon County?

East Twin Lake — East Twin Lake in Lyon County has the deepest documented maximum depth of any ranked Lyon County lake, at 22 feet in Minnesota DNR records.

Deepest lakes statewide Biggest lakes in Lyon County All Lyon County lakes

The 9 Deepest Lakes in Lyon County, Minnesota

East Twin Lake

School Grove Lake

Lady Slipper Lake

Clear Lake

Goose Lake

Lake Yankton

Rock Lake

Island Lake

Cottonwood Lake

How this list is built

Lyon County lake records

What is the deepest lake in Lyon County?

The 9 Deepest Lakes in Lyon County, Minnesota

East Twin Lake

School Grove Lake

Lady Slipper Lake

Clear Lake

Goose Lake

Lake Yankton

Rock Lake

Island Lake

Cottonwood Lake

How this list is built

Lyon County lake records

What is the deepest lake in Lyon County?