Rest Lake
Vilas County, WisconsinLimited DataMesotrophic
Rest Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.
Mesotrophic conditions dominate at Rest Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's 53 ft maximum depth is in the upper tier for Wisconsin — deep enough for cold-water fish to find refuge in summer. Rest Lake covers 655 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Rest Lake sits at rank 115 of 191 in Vilas County, in the lower half of the local distribution.
An invasive species record — Banded Mystery Snail — has been logged at Rest Lake; Wisconsin DNR maintains the official infested-waters list. Walleye are documented at Rest Lake, one of 6 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-09-26. Grade methodology: LakeGrade methodology.
Watch Rest Lake water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.5 ft. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 53 ft |
| Surface Area | 655 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Rest Lake (14-day solunar calendar)
→ Is it safe to eat fish from Rest Lake? (mercury & PFAS guide)
→ Rest Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +2 m/yr | 2 |
Recreation & Access
Location
County Ranking
Ranked #115 of 191 lakes in Vilas County
Cleaner Lakes Within 30 Miles
Rest Lake holds Grade B. One nearby lake has a higher grade.
Nearby Lakes in Vilas County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Compare Rest Lake With Nearby Lakes
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 2 stations on file (most recent sample 2021).
Fish Species (DNR-rated)
Reservoir Info (USACE NID)
Rest Lake is a man-made reservoir impounded by the Rest Lake (completed 1925), built primarily for recreation on the MANITOWISH; gravity-type dam, 25 ft tall and 320 ft long.
- Surface area
- 4,200 ac
- Normal storage
- 32,000 ac-ft
- Max storage
- 68,000 ac-ft
- Drainage area
- 243 sq mi
- Hazard class
- High
- Owner
- Xcel Energy
Source: USACE National Inventory of Dams, NID ID WI00211 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2021-09-26
Monitoring stations: 1
Where to stay near Rest Lake
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