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LakeQuality

Trestle Lake

Itasca County, Minnesota111 acresView mapDirections

Minnesota PCA publishes the water-quality measurements for Trestle Lake. Here is what has been measured.

Clarity
14.8 ft
Clearer than most
Secchi · sampled 2020
Phosphorus
11.5 µg/L
Less phosphorus than most
Measured by Minnesota PCA
Chlorophyll-a
2.9 µg/L
Less algae than most
Measured by Minnesota PCA
Max depth
35 ft
Bathymetric survey
Area
111 acres
Surface area
Type
Oligotrophic
Trophic class
  • Oligotrophic
  • 35 ft max depth
  • Public access
  • Limited data

Trestle Lake in Itasca County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 14.8 ft visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 2.9 µg/L. Maximum depth: 35 ft. Surface area: 111.26 acres.

Minnesota DNR's Standard Survey on July 17, 2023 caught 7.00 northern pike per gill net at Trestle Lake. Length samples in the latest survey that recorded them ran 15–31 inches. DNR survey details →

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Trestle Lake is a 111-acre cold, clear oligotrophic lake in Itasca County, Minnesota with a maximum depth of 35 feet. The lake supports 7 documented fish species including black crappie, bluegill, and hybrid sunfish. Public access is available with 1 public boat landing. Compared to the 71 other monitored lakes in Itasca County, Trestle Lake ranks #25 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2020-09-29. Methodology: how these readings are compared.

Trestle Lake covers about 110 acres in Itasca County. It has one public boat landing. For a place on the water, look through cabin and lake-house rentals near Trestle Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.

What Trestle Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water14.8 ft of visibility
  • Boat launch1 documented ramp
  • Fishing7 species recorded
  • Deep water35 ft surveyed max depth

Swimming conditions

Readings only

Limited data

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Trestle Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Trestle Lake

These are the measurements Minnesota PCA publishes for Trestle 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 14.8 ft. Phosphorus 11.5 µg/L. Chlorophyll-a 2.9 µg/L. TSI 40.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)14.8ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus11.5µg/LGood
GoodFairPoor
Chlorophyll-a (algae)2.9µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.40Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Trestle Lake

Answers come straight from the public measurements and survey records on this page.

DNR fisheries survey

Minnesota DNR's Standard Survey on July 17, 2023 caught 7.00 northern pike per gill net at Trestle Lake. Length samples in the latest survey that recorded them ran 15–31 inches.

A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Trestle Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.

DNR Fisheries Survey Summary

4 surveys on file from MN DNR Fisheries. Most recent: 2023-07-17 (Standard Survey).

4 surveys on file · most recent 2023-07-17 (Standard Survey)

SpeciesCatch rate (CPUE)SizeAvg weight
Bluegill
23.36
3–7 in
2023-07-17
0.15 lb
Largemouth Bass
13.90
5–19 in
2023-07-17
1.36 lb
Northern Pike
6.52
15–31 in
2023-07-17
1.96 lb
Yellow Perch
3.32
5–6 in
2023-07-17
0.13 lb
Black Crappie
3.04
4–12 in
2023-07-17
0.3 lb
Pumpkinseed
1.96
4–5 in
2023-07-17
0.21 lb

CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.

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

232 fish · 3–7 in · 2023-07-17
6231034567

Largemouth Bass

81 fish · 5–19 in · 2023-07-17
20100trophy 20″681012141618

Northern Pike

32 fish · 15–31 in · 2023-07-17
7401618202224262830

Yellow Perch

4 fish · 5–6 in · 2023-07-17
21056

From the 2023-07-17 survey

Trestle Lake (also known as Fox Lake) is located 8 miles northwest of Talmoon, MN in the Big Fork River watershed. The mostly undeveloped lake has a surface area of 96 acres and a maximum depth of 35 feet. Secchi disk transparency was 18 feet in the most recent survey. The lake has no inlets and an unnamed,…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Trestle Lake. 3 reports on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Lake Details

Max depth

35 ft

Surface area

111 acres

Shoreline

2.2 mi

Littoral zone

29%

Share shallower than 15 ft

Public access

Yes

Listed by Minnesota PCA

Lake Size & Watershed

Watershed (drainage) area

0 sq mi

HydroLAKES / HydroSHEDS

Elevation

1,358 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Trestle 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 Trestle Lake

Compare lakeside cabins, hotels, and vacation rentals near Trestle 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 Trestle Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Minnesota’s top lakes →

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Fish Species

Click a species to see every lake where it is documented.

Fishing Trestle Lake

Nearby Lakes in Itasca County

Frequently asked questions about Trestle Lake

Where is Trestle Lake?

Trestle Lake is a lake in Itasca County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

What is the water quality of Trestle Lake?

Trestle Lake in Itasca County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 14.8 ft visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 2.9 µg/L. Maximum depth: 35 ft. Surface area: 111.26 acres.

Measurements on this page ↑

Is Trestle Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Trestle Lake?

Trestle Lake has a maximum depth of 35 feet. The lake covers 111.26 acres.

What fish are in Trestle Lake?

Fish species found in Trestle Lake include black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, yellow perch. Trestle Lake is located in Itasca County, Minnesota.

Fish on this page ↑

What did the DNR fisheries survey find at Trestle Lake?

Minnesota DNR's Standard Survey on July 17, 2023 caught 7.00 northern pike per gill net at Trestle Lake. Length samples in the latest survey that recorded them ran 15–31 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Trestle Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.

DNR on this page ↑

Are there boat ramps on Trestle Lake?

Trestle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Trestle Lake. Public access is listed as yes.

Access on this page ↑

Can I fish at Trestle Lake?

Trestle 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.

Access on this page ↑

State Parks Near Trestle Lake

Oligotrophic Lakes in Minnesota

Where this data comes from

15 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA15 samples · 2020

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by Two Reagent Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
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

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder

Named boat-access points from the USGS National Boat Ramps inventory