Lakes / Maine / Upper Mason Pond
Upper Mason Pond, Maine
116 acres
Surface Area
10 ft
Max Depth
4 ft
Average Depth
2.3 mi
Shoreline
187 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Maine
44.46 degrees N, 69.00 degrees W - Waldo County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Maine DEP coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Upper Mason Pond
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Upper Mason Pond Stacks Up
- A shallow lake - typical of most Maine lakes, which run under 20 ft at their deepest.
- About 26 miles from Bangor, as the crow flies.
- 10 fish species on the DEP list for this lake.
Fish Species
Smallmouth BassChain PickerelYellow PerchAmerican EelBanded KillifishBrown BullheadGolden ShinerInvasive) Largemouth BassPumpkinseedWhite Sucker
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Lake ID (MIDAS)4828
CountyWaldo
TownsBelfast
Lake TypeWarmwater
Coordinates44.4612, -69.0018
Deepest Natural Lakes in Maine
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Sebago Lake | Cumberland | 30,536 acres | 316 ft |
| 2 | Moosehead Lake | Piscataquis | 75,473 acres | 246 ft |
| 3 | Tunk Lake | Hancock | 2,071 acres | 222 ft |
| 4 | Pleasant Pond | Somerset | 1,037 acres | 198 ft |
| 5 | Schoodic Lake | Piscataquis | 7,021 acres | 188 ft |
Largest Lakes in Maine
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Moosehead Lake | Piscataquis | 75,473 acres | 246 ft |
| 2 | Sebago Lake | Cumberland | 30,536 acres | 316 ft |
| 3 | Chesuncook Lake | Piscataquis | 28,250 acres | 150 ft |
| 4 | Spednic Lake | Washington | 19,618 acres | 54 ft |
| 5 | South Twin Lake | Penobscot, Piscataquis | 18,652 acres | 101 ft |
Sources: Maine DEP / Lakes of Maine lake data (ID 4828); USGS. Verified October 30, 2026.