Cascade Lake
San Juan County, Washington176 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
Cascade Lake in San Juan County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 176 acres.
Cascade Lake is a 176-acre lake in San Juan County, Washington.
Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.
What Cascade Lake is good for
From access and monitoring records, not editorial picks.
- Camping3 public campgrounds nearby
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Cascade 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.
Water quality measurements for Cascade Lake
These are the measurements Washington Ecology publishes for Cascade 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 Cascade Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
176 acres
No bathymetric survey has been published for Cascade Lake, so its depth is not documented here.
Recreation & Access
Public campgrounds near Cascade Lake
- Midway Campground0.4 km
- Southend Campground0.7 km
- Northend Campground0.7 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Cascade Lake
Compare lakeside cabins, hotels, and vacation rentals near Cascade Lake in San Juan 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 Cascade Lake
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Fishing Cascade Lake
Nearby Lakes in San Juan County
Frequently asked questions about Cascade Lake
Where is Cascade Lake?
- Cascade Lake is a lake in San Juan County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Cascade Lake?
- Cascade Lake in San Juan County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 176 acres.
Is Cascade Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Cascade Lake?
- Cascade Lake has 3 public campgrounds from USGS The National Map within 5 km, including Midway Campground, Southend Campground, Northend Campground. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
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Where this data comes from
Measurements for Cascade Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles