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Lakes / Oregon / Harney County / Garrison Lake

Garrison Lake, Oregon

528 acres
Surface Area

Where It Sits, and How Deep It Goes

Locator - Oregon

PortlandBendGarrison LakeHarney Co.

42.44 degrees N, 118.99 degrees W - Harney County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.

How Garrison Lake Stacks Up

Lakes Nearby

LakeCountyDistanceSurface Area
West Field LakeHarney4.6 mi132 acres
Threemile ReservoirHarney5.7 mi168 acres
Bradley LakeHarney11 mi25 acres
Skull Creek ReservoirHarney13 mi75 acres
V LakeHarney13 mi31 acres
Shallow LakeHarney16 mi2,305 acres

Straight-line distance between lake centers.

Facts and Figures

Waterbody ID158122735
CountyHarney
Lake TypeLake
Coordinates42.4376, -118.9917

Questions About Garrison Lake

How Big Is Garrison Lake?

Garrison Lake covers 528 acres in Harney County, Oregon.

What Is the Largest Lake in Harney County?

Harney Lake is the largest lake in Harney County, at 31,290 acres.

Largest Lakes in Oregon

#LakeCountySurface AreaMax Depth
1Upper Klamath LakeKlamath62,095 acres-
2Lake UmatillaMorrow50,042 acres-
3Lake AbertLake37,137 acres-
4Summer LakeLake31,602 acres-
5Harney LakeHarney31,290 acres-

All 642 Oregon lakes ranked by surface area

Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 158122735). Verified October 30, 2026.