Thousand Island Lake
Gogebic County, Michigan1,008 acresView mapDirections
EGLE publishes the water-quality measurements for Thousand Island Lake. Here is what has been measured.
- 40 ft max depth
- Public access
- Limited data
Thousand Island Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10 ft visibility. Maximum depth: 40 ft. Surface area: 1007.5 acres.
Free interactive depth-contour map of Thousand Island Lake, reaching a maximum surveyed depth of 40 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Thousand Island Lake is a 1,008-acre lake in Gogebic County, Michigan with a maximum depth of 40 feet. Overall water quality is improving over recent sampling years. The lake supports 1 documented fish species including Lake herring. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-13. Methodology: how these readings are compared.
Thousand Island Lake covers about 1,000 acres in Gogebic County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around Thousand Island Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Thousand Island Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10 ft of visibility
- Boat launch1 documented ramp
- Deep water40 ft surveyed max depth
- Big water1,008 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Thousand Island Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Thousand Island Lake
These are the measurements EGLE publishes for Thousand Island Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10 ft. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Thousand Island Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
40 ft
Surface area
1,008 acres
Public access
Yes
Listed by EGLE
Recreation & Access
- Thousand Island LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Thousand Island Lake
Compare lakeside cabins, hotels, and vacation rentals near Thousand Island Lake in Gogebic 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 Thousand Island Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Thousand Island Lake
Water Quality Trend: Improving
Based on 7 years of monitoring (2016–2023).
Water clarity
Improving7 years
Phosphorus
Improving-0.46 µg/L/yr7 years
Nearby Lakes in Gogebic County
Frequently asked questions about Thousand Island Lake
Where is Thousand Island Lake?
- Thousand Island Lake is a lake in Gogebic County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Thousand Island Lake?
- Thousand Island Lake in Gogebic County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10 ft visibility. Maximum depth: 40 ft. Surface area: 1007.5 acres.
Is Thousand Island Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Thousand Island Lake?
- Thousand Island Lake has a maximum depth of 40 feet. The lake covers 1007.5 acres.
What fish are in Thousand Island Lake?
- Fish species found in Thousand Island Lake include Lake herring. Thousand Island Lake is located in Gogebic County, Michigan.
Are there boat ramps on Thousand Island Lake?
- Thousand Island Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Thousand Island Lake. Public access is listed as yes.
Can I fish at Thousand Island Lake?
- Thousand Island Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
Explore Thousand Island Lake across LakeQuality
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Where this data comes from
80 measurements from 1 monitoring station, 2016–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS80 samples · 2016–2022
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory