Alexander Lake vs Spirit River Flowage Lake
Water quality, depth, fish species, and recreation comparison.
Alexander Lake reads lower on nutrients and algae than Spirit River Flowage Lake. Both are in Lincoln County, Wisconsin.
Alexander Lake and Spirit River Flowage Lake are both in Wisconsin — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The readings are close: Alexander Lake and Spirit River Flowage Lake sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.
With readings this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.
Alexander Lake
Murky, only visible to about 4 ft.
Spirit River Flowage Lake
Very murky, less than 3 ft of visibility.
Side-by-Side Metrics
| Metric | Alexander Lake | Spirit River Flowage Lake |
|---|---|---|
| Water Clarity | 4 ft Better | 3 ft |
| Phosphorus | 46.2 µg/L Better | 49.1 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 36 ft Better | 25 ft |
| Surface Area | 618 acres | 1,220 acres |
| Public Access | Yes | Yes |
| Fish Species | 6 | 6 |
| Trophic State | eutrophic | eutrophic |
A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.
Swap a lake
Compare Alexander Lake or Spirit River Flowage Lake against a different lake.
Verdict
Alexander Lake and Spirit River Flowage Lake read the same on nutrients and algae overall. The tiebreakers come down to clarity (Alexander Lake: 4 ft, Spirit River Flowage Lake: 3 ft) and what you want from the lake. Alexander Lake matches its peer on species count.
Stays via Stay22
Where to stay near Alexander Lake and Spirit River Flowage Lake
Compare cabins, hotels, and vacation rentals around Alexander Lake and Spirit River Flowage Lake. Both lakes are pinned on the map, so you can see which stays sit nearer the one you pick. Switch to Satellite to see how close each is to the water.
Top-rated places to stay near Alexander Lake and Spirit River Flowage Lake
Prices for Oct 30–Nov 1, 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 trip to Alexander Lake and Spirit River Flowage Lake?
Get lake water-quality updates plus the best cabin & lodging deals near Alexander Lake and Spirit River Flowage Lake — straight to your inbox. No spam, unsubscribe anytime.
Source: EPA National Aquatic Resource Surveys, 2026.