Little Tamarack Flowage Lake
Vilas County, WisconsinMesotrophic
On the LakeGrade scale Little Tamarack Flowage Lake grades a B, with clarity at 8.2 ft and 16 µg/L of phosphorus placing it above the Wisconsin median. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.
The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. The lake bottoms out at 16 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Little Tamarack Flowage Lake covers 236 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Little Tamarack Flowage Lake ranks 88 of 191 in Vilas County — solidly in the upper half of the local distribution.
Little Tamarack Flowage Lake has no invasive species recorded in Wisconsin state databases as of 2025, though prevention practices still apply at all access points. The fishery is bass-led, with 4 documented species across the lake's records. A documented public access point at Little Tamarack Flowage Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-10-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 16 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.2 ft | C |
| Phosphorus | 16 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 16 ft |
| Surface Area | 236 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Little Tamarack Flowage Lake (14-day solunar calendar)
→ Is it safe to eat fish from Little Tamarack Flowage Lake? (mercury & PFAS guide)
→ Little Tamarack Flowage Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.196 m/yr | 7 |
| Phosphorus | → Stable | -0.3 µg/L/yr | 6 |
Recreation & Access
Location
County Ranking
Ranked #88 of 191 lakes in Vilas County
Cleaner Lakes Within 30 Miles
Little Tamarack Flowage Lake holds Grade B. 4 nearby lakes hold higher grades.
- AStormy LakeVilas County · mi · Higher grade (B → A)
- ABig Portage LakeVilas County · mi · Higher grade (B → A)
- AMyrtle LakeVilas County · mi · Higher grade (B → A)
- AMoccasin LakeVilas County · mi · Higher grade (B → A)
Nearby Lakes in Vilas County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2007. 2 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Reservoir Info (USACE NID)
Little Tamarack Flowage Lake is a man-made reservoir impounded by the Little Tamarack Flowage on the Little Tamarack Creek; earth-type dam, 10 ft tall.
- Surface area
- 200 ac
- Normal storage
- 2,000 ac-ft
- Max storage
- 2,490 ac-ft
- Drainage area
- 25 sq mi
- Hazard class
- Low
- Owner
- Little Tamarack Flowage, Baker Spring Lake District
Source: USACE National Inventory of Dams, NID ID WI20051 · 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: 2025-10-08
Monitoring stations: 1
Where to stay near Little Tamarack Flowage Lake
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