Where is Moon Reservoir?

Moon Reservoir is a lake in Harney County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.

Moon Reservoir

Harney County, Oregon725 acresView map Directions

No nutrient or algae sampling on record from Oregon DEQ for this lake.

Area

725 acres

Surface area

Shoreline

11.9 mi

Measured length

Impaired · Temperature

See the measurements Directions Where to stay

Moon Reservoir in Harney County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 725 acres.

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Moon Reservoir is a 725-acre lake in Harney County, Oregon.

Source: EPA Water Quality Portal sampling records, Oregon DEQ. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Moon Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for temperature. Check local advisories before you swim.

Whether Moon Reservoir is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Moon Reservoir

These are the measurements Oregon DEQ publishes for Moon Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Moon Reservoir

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

725 acres

Shoreline

11.9 mi

No bathymetric survey has been published for Moon Reservoir, so its depth is not documented here.

Stays via Stay22

Stays near Moon Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Moon Reservoir in Harney County, Oregon — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Moon Reservoir

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Fishing Moon Reservoir

→ Moon Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Moon Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Temperature

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit OR_LK_1712000411_09_100965 · Official waterbody report

Nearby Lakes in Harney County

Stinking Lake8.1 miView →Fay Canyon Reservoir8.1 miView →Derrick Lake10.6 miView →Zoglmann Reservoir12 miView →Chickahominy Reservoir13.6 miView →Harney Lake20 miView →

Frequently asked questions about Moon Reservoir

Where is Moon Reservoir?: Moon Reservoir is a lake in Harney County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Moon Reservoir?: Moon Reservoir in Harney County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Surface area: 725 acres.
Is Moon Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Moon Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for temperature. Check local advisories before you swim.