Lakes / Massachusetts / Worcester County / Clamshell Pond
Clamshell Pond, Massachusetts
32 acres
Surface Area
30 ft
Max Depth
12 ft
Average Depth
Where It Sits, and How Deep It Goes
Locator - Massachusetts
42.40 degrees N, 71.68 degrees W - Worcester County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Massachusetts Division of Fisheries and Wildlife coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Clamshell Pond
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Clamshell Pond Stacks Up
- Deeper than 63% of the 211 natural Massachusetts lakes ranked by depth.
- Larger than 18% of the 784 lakes counted in Massachusetts.
- About 11 miles from Worcester, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Coachlace Pond | Worcester | 1.4 mi | 35 acres |
| Mossy Pond | Worcester | 1.7 mi | 31.38 acres |
| South Meadow Pond | Worcester | 1.8 mi | 36.57 acres |
| Wachusett Reservoir | Worcester | 3.1 mi | 4,041 acres |
| East Waushacum Pond | Worcester | 3.6 mi | 190 acres |
| Rocky Pond | Worcester | 3.7 mi | 68.17 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Clamshell Pond
How Big Is Clamshell Pond?
Clamshell Pond covers 32 acres in Worcester County, Massachusetts.
How Deep Is Clamshell Pond?
Clamshell Pond reaches 30 ft at its deepest. Its average depth is 12 ft.
What Is the Largest Lake in Worcester County?
Wachusett Reservoir is the largest lake in Worcester County, at 4,041 acres.
Deepest Natural Lakes in Massachusetts
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Walden Pond | Middlesex | 62 acres | 100 ft |
| 2 | Cliff Pond | Barnstable | 206 acres | 96 ft |
| 3 | Wallum Lake | Worcester | 322 acres | 81 ft |
| 4 | Onota Lake | Berkshire | 653 acres | 72 ft |
| 5 | Ashumet Pond | Barnstable | 220 acres | 69 ft |
All 211 Massachusetts lakes ranked by depth
Largest Lakes in Massachusetts
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Quabbin Reservoir | Franklin | 24,012 acres | - |
| 2 | Wachusett Reservoir | Worcester | 4,041 acres | - |
| 3 | Assawompset Pond | Plymouth | 2,652.37 acres | - |
| 4 | Watuppa Pond | Bristol | 1,758.37 acres | - |
| 5 | South Watuppa Pond | Bristol | 1,460 acres | 23 ft |
All 784 Massachusetts lakes ranked by surface area
Sources: Massachusetts Division of Fisheries & Wildlife lake data (ID 129728021). Verified October 30, 2026.