Riffe Lake is a lake in Lewis County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.

How deep is Riffe Lake?

Riffe Lake has a maximum depth of 360.9 feet. The lake covers 11224 acres.

Riffe Lake

Lewis County, Washington11,224 acresView map Directions

No nutrient or algae sampling on record from Washington Ecology for this lake.

Max depth

360.9 ft

Bathymetric survey

Area

11,224 acres

Surface area

Shoreline

45.9 mi

Measured length

361 ft max depth

See the measurements Directions Where to stay

Riffe Lake in Lewis County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 360.9 ft. Surface area: 11224 acres.

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Riffe Lake is a 11,224-acre lake in Lewis County, Washington with a maximum depth of 361 feet.

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

What Riffe Lake is good for

From access and monitoring records, not editorial picks.

Deep water360.9 ft surveyed max depth
Big water11,224 acres

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Riffe Lake is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Riffe Lake →

Water quality measurements for Riffe Lake

These are the measurements Washington Ecology publishes for Riffe Lake, 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 Riffe Lake

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

Lake Details

Max depth

360.9 ft

Surface area

11,224 acres

Shoreline

45.9 mi

Stays via Stay22

Stays near Riffe Lake

Compare lakeside cabins, hotels, and vacation rentals near Riffe Lake in Lewis County, Washington — 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 Riffe Lake

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Fishing Riffe Lake

→ Riffe Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Lewis County

Mayfield Lake11.2 miView →Lake Scanewa11.8 miView →Mineral Lake—View →Granite Lake—View →Cora Lake—View →Pond Number Three—View →

Frequently asked questions about Riffe Lake

Where is Riffe Lake?: Riffe Lake is a lake in Lewis County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Riffe Lake?: Riffe Lake in Lewis County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 360.9 ft. Surface area: 11224 acres.
Is Riffe Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Riffe Lake?: Riffe Lake has a maximum depth of 360.9 feet. The lake covers 11224 acres.