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Big Sand Lake reads lower on nutrients and algae than Middle Mckenzie Lake. Both are in Burnett County, Wisconsin.

Reviewed by LakeQuality Editorial Team · Updated

Big Sand Lake and Middle Mckenzie 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. These two sit close on the readings, Big Sand Lake versus Middle Mckenzie Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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.

Big Sand Lake

Burnett County, Wisconsin

Good clarity, visible to about 11 ft.

Middle Mckenzie Lake

Burnett County, Wisconsin

Crystal clear, you can see 20 ft down.

Side-by-Side Metrics

MetricBig Sand LakeMiddle Mckenzie Lake
Water Clarity11 ft20 ft Better
Phosphorus19.5 µg/L12.4 µg/L Better
Chlorophyll-a (Algae)2.3 µg/LNo data
Maximum Depth55 ft Better45 ft
Surface Area1,434 acres527 acres
Public AccessYesYes
Fish Species55
Trophic Statemesotrophicoligotrophic

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.

Verdict

Big Sand Lake reads lower on nutrients and algae than Middle Mckenzie Lake. Water clarity: 11 ft vs 20 ft. For fishing diversity, Big Sand Lake also leads with 5 species.

Source: EPA National Aquatic Resource Surveys, 2026.