Cast Gill

Range Line Lake

Forest County, Wisconsin · WBIC 478200

Official regulationsDNR lake mapDepth map (PDF)

Size

82 acres

Max depth

11 ft

DNR lake type

Complex, Cool, dark water color

Water clarity

4 ft

Low, measured Jul 2015

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

Range Line Lake Access1Range Line Lake Ramp2

Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1991), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.

Water clarity

4 ft Secchi depthLowOlder reading

Last measured Jul 17, 2015. 156 readings on record, 1990 to 2015.

Typical summer clarity (June to September): 4 ft, low, from 22 readings (2012 to 2015).

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 Range Line Lake - Deep Hole. Checked Oct 23, 2026.

Water temperature

A typical year Modeled estimate

  • Ice goes outabout Apr 18 (Apr 5 to Apr 25)
  • Surface reaches 48°Fabout Apr 26 (Apr 16 to May 3)
  • Surface reaches 64°Fabout May 18 (May 10 to May 25)
  • June surface71°F, usually 71 to 73°F
  • July surface77°F, usually 75 to 78°F
  • August surface73°F, usually 71 to 74°F

Mixes regularly through the summer instead of forming a warm top layer.

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

Loading today's forecast…

Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.

Stocking history

  • Walleyelast stocked 2024 (large fingerling and small fingerling); stocked in 8 years since 2010

Stocking shows what was added to the lake, not what is in it now.

Wisconsin DNR annual fish stocking summary. Checked Oct 23, 2026.

Fish recorded near this lake

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

Wisconsin DNR public boat access sites. Checked Oct 23, 2026.

More lakes in Forest County

All Forest County lakes

Where this comes from

  • Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
  • OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
  • Stocking historyWisconsin DNR annual fish stocking summary, 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
  • Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026

See data sources for what each source covers, and about for how the numbers are matched to lakes.