Harwood Lake
Cass County, Michigan118 acresView mapDirections
EGLE publishes the water-quality measurements for Harwood Lake. Here is what has been measured.
- 50 ft max depth
- Public access
- Limited data
Harwood Lake in Cass County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10 ft visibility. Maximum depth: 50 ft. Surface area: 117.8 acres.
Free interactive depth-contour map of Harwood Lake, reaching a maximum surveyed depth of 50 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Harwood Lake is a 118-acre lake in Cass County, Michigan with a maximum depth of 50 feet. Overall water quality is declining over recent sampling years. The lake supports 11 documented fish species including Blackchin shiner, Blackstripe topminnow, and Bluegill. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-16. Methodology: how these readings are compared.
What Harwood Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10 ft of visibility
- Boat launch1 documented ramp
- Fishing11 species recorded
- Deep water50 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Harwood 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 Harwood Lake
These are the measurements EGLE publishes for Harwood 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 Harwood Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
50 ft
Surface area
118 acres
Public access
Yes
Listed by EGLE
Recreation & Access
- Harwood LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Harwood Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Harwood Lake
Water Quality Trend: Worsening
Based on 4 years of monitoring (2016–2022).
Water clarity
Worsening4 years
Nearby Lakes in Cass County
Frequently asked questions about Harwood Lake
Where is Harwood Lake?
- Harwood Lake is a lake in Cass County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Harwood Lake?
- Harwood Lake in Cass County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 10 ft visibility. Maximum depth: 50 ft. Surface area: 117.8 acres.
Is Harwood Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Harwood Lake?
- Harwood Lake has a maximum depth of 50 feet. The lake covers 117.8 acres.
What fish are in Harwood Lake?
- Fish species found in Harwood Lake include Blackchin shiner, Blackstripe topminnow, Bluegill, Bluntnose minnow, Green sunfish, Iowa darter, Lake herring, Largemouth bass, Northern longear sunfish, Western banded killifish, Yellow perch. Harwood Lake is located in Cass County, Michigan.
Are there boat ramps on Harwood Lake?
- Harwood Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Harwood Lake. Public access is listed as yes.
Can I fish at Harwood Lake?
- Harwood 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 Harwood Lake across LakeQuality
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Where this data comes from
75 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
NALMS75 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