Lakes / Pennsylvania / Lake Arthur (Moraine State Park)
Lake Arthur (Moraine State Park), Pennsylvania
3,224 acres
Surface Area
About 30 ft
Max Depth (Approximate)
1,189 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Pennsylvania
40.95 degrees N, 80.07 degrees W - Butler 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 - Lake Arthur (Moraine State Park)
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map. Max depth is approximate, from Pennsylvania DCNR state park bathymetry.
How Lake Arthur (Moraine State Park) Stacks Up
- Ranks #7 for surface area among the Pennsylvania lakes counted so far - 3,224 acres.
- The largest lake in Butler County among those counted.
- About 35 miles from Pittsburgh, as the crow flies.
- 14 fish species on the Fish and Boat Commission list for this lake.
Fish Species
WalleyeMuskellungeNorthern PikeStriped BassChannel CatfishFlathead CatfishBlack CrappieWhite CrappieYellow PerchBluegillPumpkinseedAlewifeGizzard ShadGolden Shiner
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID405745800719
CountyButler
Fishing IncludesWalleye, Muskellunge, Northern Pike, Striped Bass Hybrid, Smallmouth Bass, Largemouth Bass, Channel Catfish, Black Crappie, White Crappie, Yellow Perch, Bluegill, Pumpkinseed, Common Carp
Coordinates40.9506, -80.0726
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 405745800719); USGS; Pennsylvania Department of Conservation and Natural Resources, State Park Lakes Bathymetry; Pennsylvania Fish and Boat Commission, WWCW Fisheries Lakes (PASDA PAFishBoat layer 27). Verified October 28, 2026.