Mirror Lake
Iron County, Wisconsin · WBIC 1867000
Size
58 acres
Max depth
7 ft
DNR lake type
Simple, Cool, clear water color
Water clarity
9.2 ft
Moderate, measured Aug 2000
A cool-water lake type: the DNR groups it with lakes that stay cooler through summer. This describes the lake type in general, not this lake in particular.
Outline
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1973), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
9.2 ft Secchi depthModerateOlder reading
Last measured Aug 29, 2000. 1 reading on record, 2000.
Only one reading is on record.
Nothing has been measured in the last 5 years, so this may not match the lake today.
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station MIRROR LAKE - MIRROR LAKE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 23 (Apr 14 to Apr 29)
- Surface reaches 48°Fabout Apr 29 (Apr 24 to May 7)
- Surface reaches 64°Fabout May 24 (May 13 to May 26)
- June surface70°F, usually 68 to 71°F
- July surface75°F, usually 74 to 76°F
- August surface71°F, usually 70 to 73°F
Forms a warm top layer around May 12, lasting about 122 days.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was not calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
Fish recorded near this lake
- Yellow Perch Perca flavescens1983; 1 record
Recorded in open fish survey and museum records (GBIF). A record shows a fish was found near this lake in that year, not that it is there now, and says nothing about how many. Most coordinates are rounded to about 1 km, so a record is attached only when one lake is the clear match.
Open fish survey and museum records from GBIF; datasets are listed on the sources page. Checked Oct 23, 2026.
Boat landings
- 1Mirror Lake AccessCarry-in access · Unimproved surface · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Iron County
- Goose Lake1.5 miles away
- West Randall Lake1.6 miles away
- Randall Lake2.1 miles away
- Lehto Lake2.4 miles away
- Emerson Lake2.5 miles away
- Little Cap Henry Lake2.8 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Boat landingsWisconsin DNR public boat access sites, checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- Fish recordedOpen fish survey and museum records, via GBIF, checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.
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