Big Slough
Divide County, North Dakota65 acresView mapDirections
No nutrient or algae sampling on record from ND DEQ for this lake.
Big Slough in Divide County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Surface area: 65 acres.
Big Slough is a 65-acre lake in Divide County, North Dakota.
Source: EPA Water Quality Portal sampling records, NDDEQ. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Big Slough is safe to swim in today is a call for the North Dakota Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Big Slough
These are the measurements ND DEQ publishes for Big Slough, 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 Big Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
65 acres
Shoreline
1.9 mi
No bathymetric survey has been published for Big Slough, so its depth is not documented here.
Stays via Stay22
Stays near Big Slough
Compare lakeside cabins, hotels, and vacation rentals near Big Slough in Divide County, North Dakota — 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 Big Slough
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at North Dakota’s top lakes →
Follow Big Slough’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Big Slough
Nearby Lakes in Divide County
Frequently asked questions about Big Slough
Where is Big Slough?
- Big Slough is a lake in Divide County, North Dakota. Its water-quality measurements are published by ND DEQ and shown on this page as reported.
What is the water quality of Big Slough?
- Big Slough in Divide County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Surface area: 65 acres.
Is Big Slough safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Big Slough across LakeQuality
More lakes in North Dakota
Other Lakes in North Dakota
Where this data comes from
Measurements for Big Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Depth, fish, and access data from North Dakota Game & Fish