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LakeQuality

Sprite Lake

NR
Not yet rated
12 acres
Limited Data

Sprite Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 16 ft. Surface area: 11.87 acres.

Max depth
16 ft
Area
12 acres
Public access
No

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Why Sprite Lake has no grade

We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Sprite Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Sprite Lake is a 12-acre lake in St. Louis County, Minnesota with a maximum depth of 16 feet (4-foot average). The lake supports 1 documented fish species including northern pike. No public access — the lake is private or restricted.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-10-08. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Ely

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Water quality measurements for Sprite Lake

These readings exist but do not meet the evidence bar for an A–F grade — see why.

No clarity data.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples

Where to stay near Sprite Lake

Compare lakeside cabins, hotels, and vacation rentals near Sprite Lake in St. Louis County, Minnesota — 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 Sprite Lake

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Lake Details

CharacteristicValue
Maximum Depth16 ft
Average Depth4 ft
Surface Area12 acres
Shoreline Length0.7 mi
Littoral Zone93%
Public AccessNo

Fish Species

Click a species to see every graded lake where it is documented.

Fishing Sprite Lake

DNR Fisheries Survey Summary

1 survey on file from MN DNR Fisheries. Most recent: 2013-06-24 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Northern Pike16.001.5 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Northern Pike

32 fish · 1621 in · 2013-06-24
1160161718192021

From the 2013-06-24 survey

Sprite Lake is located approximately 12 miles NW of Ely and is entirely within the BWCAW. It has a surface area of 12 acres and a maximum depth of 16 feet. Dissolved oxygen readings were adequate to 7 feet. Sprite Lake has poor water clarity and is very bog stained. Northern pike were the only fish species sampled.…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Sprite Lake. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Graded lakes near Sprite Lake

Sprite Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in St. Louis County

Frequently asked questions about Sprite Lake

What is the water quality grade for Sprite Lake?

Sprite Lake in St. Louis County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 16 ft. Surface area: 11.87 acres.

Is Sprite Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Sprite Lake 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 Sprite Lake?

Sprite Lake has a maximum depth of 16 feet and an average depth of 4 feet. The lake covers 11.87 acres.

What fish are in Sprite Lake?

Fish species found in Sprite Lake include northern pike. Sprite Lake is located in St. Louis County, Minnesota.

Where this data comes from

1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA1 sample · 2021

Analytical methods

  • Field measurement/observation, generic method
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Lake details from Minnesota DNR LakeFinder