Grignon Lake

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 1991), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.

Water clarity (satellite estimate)

• Summer 20176.7 ft (12 satellite pixels)

No one has measured this lake's clarity in the monitoring data. This is an estimate from satellite images of one summer only, so it may not match the lake today.

Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. The estimate tops out at 16 feet.

Landsat satellite estimates published by the Wisconsin DNR (summers 2016 and 2017), averaged over the lake's outline. Informational use only.

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.

Boat landings

• 1Grignon Lake Access (listed under Oconto County)Boat ramp · Gravel surface · Township
  Directions

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

More lakes in Menominee County

• Marsh Lake2.2 miles away
• La Belle Lake3.0 miles away
• Vejo Lake3.2 miles away
• Big Injun Lake3.5 miles away
• Fredenberg Lake3.6 miles away
• Rushes Lake4.9 miles away

All Menominee 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
• Boat landingsWisconsin DNR public boat access sites, checked Oct 23, 2026
• VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
• Satellite clarity estimateLandsat summer clarity estimates published by the Wisconsin DNR (2016, 2017), checked Oct 24, 2026

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