Mirror Lake
Essex County, New YorkView mapDirections
NY DEC publishes the water-quality measurements for Mirror Lake. Here is what has been measured.
- 25 ft max depth
- Public access
- Limited data
Mirror Lake in Essex County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 22.6 ft visibility.
Mirror Lake is a lake in Essex County, New York with an estimated average depth of about 25 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-14. Methodology: how these readings are compared.
Mirror Lake has one public boat landing. For a place on the water, look through cabin and lake-house rentals near Mirror Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Mirror Lake is good for
From access and monitoring records, not editorial picks.
- Clear water22.6 ft of visibility
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mirror Lake is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mirror Lake
These are the measurements NY DEC publishes for Mirror Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 22.6 ft down. TSI 32.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 22.6ft | 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. | 32 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Mirror Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~25 ft est.
Public access
Yes
Listed by NY DEC
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. New York has not published bathymetry for Mirror Lake.
Lake Size & Watershed
Watershed (drainage) area
0 sq mi
HydroLAKES / HydroSHEDS
Surface area
101 acres
HydroLAKES / HydroSHEDS
Shoreline
2.3 mi
HydroLAKES / HydroSHEDS
Elevation
1,857 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Lake PlacidPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Mirror Lake
Compare lakeside cabins, hotels, and vacation rentals near Mirror Lake in Essex County, New York — 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 Mirror Lake
Prices for Oct 23–25, 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 trip? Cabins and lodging at Mirror Lake → · more New York lake trips
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Fishing Mirror Lake
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Mirror Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 1 facility has a reported Clean Water Act violation in the past three years.
- Lake Placid (V) WpcpLake Placid · 1.3 mi away · NPDES NY0022187MajorRecent violation
- Olympic Ski Jumping ComplexNorth Elba · 2.3 mi away · NPDES NY0296678
- C/O NydecRaybrook · 4.9 mi away · NPDES NY0183661
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Essex County
Frequently asked questions about Mirror Lake
Where is Mirror Lake?
- Mirror Lake is a lake in Essex County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Mirror Lake?
- Mirror Lake in Essex County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 22.6 ft visibility.
Is Mirror Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Mirror Lake?
- No published bathymetric survey covers Mirror Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 25 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Mirror Lake?
- Mirror Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Placid. Public access is listed as yes.
Can I fish at Mirror Lake?
- Mirror 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 New York's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
7 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS7 samples · 2020
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory