Lakes / Illinois / Morgan County / Mauvaise Terre Lake
Mauvaise Terre Lake, Illinois
158.89 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Illinois
39.71 degrees N, 90.21 degrees W - Morgan County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Mauvaise Terre Lake Stacks Up
- Larger than 72% of the 511 lakes counted in Illinois.
- About 30 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Jacksonville | Morgan | 2.9 mi | 461.59 acres |
| Waverly City Lake | Morgan | 13 mi | 60.95 acres |
| Finger Lake | Cass | 21 mi | 27.43 acres |
| White Hall Reservoir | Greene | 21 mi | 41.02 acres |
| Sudduth Lake | Sangamon | 21 mi | 36.82 acres |
| Smith Lake | Scott | 21 mi | 273.79 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mauvaise Terre Lake
How Big Is Mauvaise Terre Lake?
Mauvaise Terre Lake covers 158.89 acres in Morgan County, Illinois.
What Is the Largest Lake in Morgan County?
Meredosia Lake is the largest lake in Morgan County, at 1,404.55 acres.
Largest Lakes in Illinois
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Carlyle Lake | Clinton | 22,796.77 acres | - |
| 2 | Mine Number 21 Reservoir | Franklin | 17,062.04 acres | - |
| 3 | Upper Peoria Lake | Woodford | 15,460.64 acres | - |
| 4 | Lake Shelbyville | Shelby | 10,235.1 acres | - |
| 5 | Crab Orchard Lake | Williamson | 7,292.57 acres | - |
All 511 Illinois lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 156102054). Verified October 30, 2026.