Lakes / Pennsylvania / Tionesta Lake
Tionesta Lake, Pennsylvania
570 acres
Surface Area
46 ft
Max Depth
1,239 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Pennsylvania
41.48 degrees N, 79.41 degrees W - Forest County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Pennsylvania Fish and Boat Commission coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Tionesta Lake
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Tionesta Lake Stacks Up
- The largest lake in Forest County among those counted.
- About 57 miles from Erie, as the crow flies.
Facts and Figures
Waterbody ID412828792645
CountyForest
Fishing IncludesMuskellunge, Smallmouth Bass, Channel Catfish, Black Crappie, White Crappie, Yellow Perch, Bluegill, Pumpkinseed, Rock Bass, Bullheads
Coordinates41.4765, -79.4147
Deepest Natural Lakes in Pennsylvania
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Struble Lake | Chester | 146 acres | 19 ft |
Largest Lakes in Pennsylvania
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Pymatuning Reservoir | Crawford | 13,920 acres | About 25 ft |
| 2 | Allegheny Reservoir | Warren | 12,081 acres | 128 ft |
| 3 | Raystown Lake | Huntingdon | 8,297 acres | None |
| 4 | Lake Wallenpaupack | Pike, Wayne | 5,698 acres | 60 ft |
| 5 | Shenango River Lake | Mercer | 3,559 acres | 30 ft |
Sources: Pennsylvania Fish and Boat Commission lake data (ID 412828792645); USGS; US Army Corps of Engineers; Pennsylvania Fish and Boat Commission, WWCW Fisheries Lakes (PASDA PAFishBoat layer 27). Verified October 28, 2026.