Bog Lake
Bog Lake in Itasca County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.6 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 38 ft. Surface area: 305.55 acres.
- Clarity
- 6.6 ft
- Max depth
- 38 ft
- Area
- 306 acres
- Public access
- Yes
- Ice-out
- Apr 20
- Open water
- 215 days
Next lake in Itasca County
Why Bog 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 Bog Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
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.
Bog Lake is a 306-acre lake in Itasca County, Minnesota with a maximum depth of 38 feet. The lake supports 8 documented fish species including black crappie, bluegill, and largemouth bass. Public access is available with 3 public boat landings.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-07-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Bog Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 6.6 ft. Phosphorus level: 14 µg/L. Chlorophyll-a: 3.2 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.6 ft | Not graded |
| Phosphorus | 14 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.2 µg/L | Not graded |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Bog Lake
Compare lakeside cabins, hotels, and vacation rentals near Bog Lake in Itasca 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 Bog Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 38 ft |
| Surface Area | 306 acres |
| Shoreline Length | 6.9 mi |
| Littoral Zone | 74% |
| Public Access | Yes |
Recreation & Access
- Lost Moose LakePublic
- Sand LakePublic
- Burrows Lake (South)Public
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Bog Lake
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2024-07-22 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 17.97 | 0.17 lb |
| Bluntnose Minnow | 15.37 | — |
| Largemouth Bass | 7.15 | 0.84 lb |
| CNM | 6.30 | — |
| Smallmouth Bass | 3.98 | 1.08 lb |
| Black Crappie | 3.77 | 0.35 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.
Bluegill
Largemouth Bass
Smallmouth Bass
Black Crappie
From the 2024-07-22 survey
A targeted survey of nearshore fish species in Burrows Lake was conducted beginning on July 22nd, 2024 by Index of Biological Integrity (IBI) Program Staff. Sampling sites were evenly spaced around the lake and each was sampled by backpack electrofishing and seining with a 50-foot, where possible. Backpack…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Bog Lake. 5 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — BurrowsFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Burrows (0801)Aquatic Plant Report · MN DNR LakeFinder
- —Aquatic Plant Report — Burrows (2064)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — BurrowsFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — BurrowsPublic Water Access Sites · MN DNR LakeFinder
Ice Season
Historical ice data from Minnesota DNR (24 observations).
Estimated open water season: 215 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2017-04-10 (2017) | 2013-05-09 (2013) |
| Ice-In | 2006-11-12 (2006) | 2004-11-25 (2004) |
Most recent ice-out: 2020-04-24
EPA Impairment Status
Bog Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN31-0439-00 · Official waterbody report · Matched by proximity (2.85 km)
Graded lakes near Bog Lake
Bog Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Itasca County
Frequently asked questions about Bog Lake
What is the water quality grade for Bog Lake?
- Bog Lake in Itasca County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.6 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Maximum depth: 38 ft. Surface area: 305.55 acres.
Is Bog Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Bog Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Algae concentration (chlorophyll-a) is 3.2 µg/L. Always check local health department advisories before swimming.
How deep is Bog Lake?
- Bog Lake has a maximum depth of 38 feet. The lake covers 305.55 acres.
What fish are in Bog Lake?
- Fish species found in Bog Lake include black crappie, bluegill, largemouth bass, northern pike, smallmouth bass, walleye, white sucker, yellow perch. Bog Lake is located in Itasca County, Minnesota.
When does Bog Lake thaw?
- Bog Lake typically has ice-out around Apr 20. Ice typically forms around Nov 21. The open water season is approximately 215 days.
Are there boat ramps on Bog Lake?
- Bog Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lost Moose Lake, Sand Lake, Burrows Lake (South). Public access is listed as yes.
Explore Bog Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
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Where this data comes from
5 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA5 samples · 2022
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2130 B ~ Nephelometric Method
- 2120 B ~ Color in Water by Visual Comparison
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
Impairment status from EPA ATTAINS 303(d) database
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory
Ice data from Minnesota DNR Climate