Lakes / Massachusetts / Berkshire County / Clam Lake Reservoir
Clam Lake Reservoir, Massachusetts
50.9 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Massachusetts
42.14 degrees N, 73.11 degrees W - Berkshire 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.
How Clam Lake Reservoir Stacks Up
- Larger than 42% of the 784 lakes counted in Massachusetts.
- About 27 miles from Springfield, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lower Spectacle Pond | Berkshire | 1.8 mi | 70 acres |
| Abbey Lake | Berkshire | 2.2 mi | 42.26 acres |
| Upper Spectacle Pond | Berkshire | 2.8 mi | 53 acres |
| West Lake | Berkshire | 2.9 mi | 60 acres |
| Atwater Pond | Berkshire | 3.3 mi | 28.91 acres |
| Otis Reservoir | Hampden | 3.5 mi | 1,036 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Clam Lake Reservoir
How Big Is Clam Lake Reservoir?
Clam Lake Reservoir covers 50.9 acres in Berkshire County, Massachusetts.
What Is the Largest Lake in Berkshire County?
Onota Lake is the largest lake in Berkshire County, at 653 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: USGS National Hydrography Dataset (The National Map) lake data (ID 123632675). Verified October 30, 2026.