USFS · Michigan

Delirium Wilderness

A few intrepid deer hunters in fall and skiers in winter are just about the only people who visit this Wilderness. A thickly forested swamp with surface water and biting insects, it bears signs of past...

Description from Wilderness Connect (wilderness.net), where the full text continues.

Official page at Wilderness Connect ↗
Delirium Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service
StateMichigan
Size11,951 acres (Wilderness Connect)
Designated1987, by Congress
Center point46.3009, -84.7035
Night skyAbout as dark as the ground gets (Black Marble reading 10)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground

The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.

Weather by month

NOAA climate normals →
Weather by month near Delirium Wilderness10°20°30°40°50°60°70°January: 1.96 inches of precipitation, 24.2 inches of snowFebruary: 1.51 inches of precipitation, 15.6 inches of snowMarch: 1.85 inches of precipitation, 12.6 inches of snowApril: 3.18 inches of precipitation, 6.1 inches of snowMay: 2.65 inches of precipitation, 0.1 inches of snowJune: 3.15 inches of precipitation, 0.0 inches of snowJuly: 4.06 inches of precipitation, 0.0 inches of snowAugust: 3.07 inches of precipitation, 0.0 inches of snowSeptember: 3.92 inches of precipitation, 0.0 inches of snowOctober: 4.35 inches of precipitation, 1.2 inches of snowNovember: 3.39 inches of precipitation, 12.7 inches of snowDecember: 2.46 inches of precipitation, 21.6 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 16.8°F averageFebruary: 18.8°F averageMarch: 27.9°F averageApril: 40.2°F averageMay: 52.4°F averageJune: 61.8°F averageJuly: 66.0°F averageAugust: 65.3°F averageSeptember: 57.6°F averageOctober: 45.5°F averageNovember: 34.2°F averageDecember: 24.3°F average0 in5 in10 in15 in20 in25 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Rudyard 4N, 6 miles from the center point at 753 feet, station USC00207190 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 36 inches a year. The dotted line is average snowfall, about 94 inches a year on the same inches scale.

Large units span more than one climate. The station stands in for the center point, and the outer parts of the boundary can be warmer or colder.

Where to camp

Campsite Atlas →

No federal campground sits inside the boundary. 3 are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Fire nearby

Within 50 miles · as of 2026-09-18
  • Prescribed
    Red Delicious Rx

    10 mi from the center point · 289 acres

Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.

Explore

Nearby on the other atlases

National Register listings within 15 miles · 3 in all · Register Atlas

Landmarks are listed first, then by distance from the boundary.

Reference

Questions people ask

How big is Delirium Wilderness?

11,951 acres.

Source: Wilderness Connect

Who manages Delirium Wilderness?

The U.S. Forest Service.

Source: Wilderness Connect

What state is Delirium Wilderness in?

Michigan.

Source: Wilderness Connect

When was Delirium Wilderness designated?

Congress designated it in 1987.

Source: Wilderness Connect

Can I camp at Delirium Wilderness?

No federal campground sits inside the boundary. The nearest is Soldier Lake, 5.1 miles out. 3 in all are within ten miles. Camping inside a wilderness is usually allowed away from roads, with no facilities; the managing agency page has the permit rules.

Source: Where to camp

How do I get to Delirium Wilderness?

A point inside the boundary is at 46.301, -84.704. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Delirium Wilderness right now?

1 active incident within 50 miles as of 2026-09-18, the nearest Red Delicious Rx at 10 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Delirium Wilderness?

NASA’s Black Marble night-lights image reads 10 on a 0 to 255 scale at the center point, about as dark as the ground gets.

Source: NASA Black Marble

Are there historic places near Delirium Wilderness?

3 National Register listings within 15 miles, including Kinross Township Hall and School and M-28--Tahquamenon River Bridge.

Source: Register Atlas

Sources

  • Boundary, name, acreage, designation year, states and description: Wilderness Connect.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Trailheads and sites: the Forest Service Recreation Opportunities layer, points inside the boundary.
  • Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
  • Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.