Flanigan Slough
Flanigan Slough in Baraga County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 22 ft. Surface area: 70 acres.
- Max depth
- 22 ft
- Area
- 70 acres
Next lake in Baraga County
Swipe left or right on this bar to open the next or previous lake.
Water clarity at Flanigan Slough
Murky water. Across summers from 2018 to 2023, Flanigan Slough averaged 0.53 m (2 ft) of visibility down into the water, so you cannot see far below the surface in midsummer.
Nobody has taken a water sample here that we can find. Michigan's environmental agency measures clarity on lakes like this one from satellite images instead, which is why this page reports how clear the water is but carries no A–F grade.
Clear is not the same as clean. A lake can be easy to see through and still carry high nutrient levels, and a naturally tea-stained lake can be perfectly healthy. The A–F grade on other lakes is built from phosphorus and algae measured in a laboratory, and clarity alone cannot stand in for it.
The same satellite images put summer algae here at roughly 49.69 micrograms per litre. Estimating algae from orbit is far less exact than measuring clarity, so that figure is worth knowing and is not part of any rating.
Flanigan Slough is a 70-acre lake in Baraga County, Michigan with a maximum depth of 22 feet (9-foot average).
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Flanigan Slough water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Flanigan Slough
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Flanigan Slough
Compare lakeside cabins, hotels, and vacation rentals near Flanigan Slough in Baraga County, Michigan — 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 Flanigan Slough
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 Michigan’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 22 ft |
| Average Depth | 9 ft |
| Surface Area | 70 acres |
| Shoreline Length | 0.9 mi |
Fishing Flanigan Slough
Nearby Lakes in Baraga County
Frequently asked questions about Flanigan Slough
Where is Flanigan Slough?
- Flanigan Slough is a lake in Baraga County, Michigan. LakeQuality has not rated this lake (UNRATED) — no in-situ water sample; this lake is rated for water clarity from satellite observations instead.
What is the water quality grade for Flanigan Slough?
- Flanigan Slough in Baraga County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 22 ft. Surface area: 70 acres.
Is Flanigan Slough safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Flanigan Slough is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Flanigan Slough?
- Flanigan Slough has a maximum depth of 22 feet and an average depth of 9 feet. The lake covers 70 acres.
Explore Flanigan Slough across LakeQuality
Fish species and top-graded lakes across Michigan
Species activity outlook by water temperature and season
Top lakes and where to stay in the Upper Peninsula area
Where to stay at Michigan's top lakes, each with its grade
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Lakes in Michigan
Where this data comes from
Measurements for Flanigan Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.