USFS · Illinois

Bay Creek Wilderness

Bay Creek runs year-round, creating excellent conditions for woodland species including oak, pine, cedar, and ash, and flowering trees such as dogwood, redbud, wild cherry, and plum. On the north side...

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

Official page at Wilderness Connect ↗
Bay Creek Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byU.S. Forest Service
StateIllinois
Size2,760 acres (Wilderness Connect)
Designated1990, by Congress
Center point37.5498, -88.6234
Night skyAbout as dark as the ground gets (Black Marble reading 12)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Forest Service recreation site

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 Bay Creek Wilderness30°40°50°60°70°80°January: 3.84 inches of precipitation, 1.7 inches of snowFebruary: 3.64 inches of precipitation, 3.2 inches of snowMarch: 4.66 inches of precipitation, 0.6 inches of snowApril: 4.96 inches of precipitation, 0.0 inches of snowMay: 5.19 inches of precipitation, 0.0 inches of snowJune: 4.08 inches of precipitation, 0.0 inches of snowJuly: 4.39 inches of precipitation, 0.0 inches of snowAugust: 3.65 inches of precipitation, 0.0 inches of snowSeptember: 3.79 inches of precipitation, 0.0 inches of snowOctober: 3.84 inches of precipitation, 0.3 inches of snowNovember: 4.30 inches of precipitation, 0.0 inches of snowDecember: 4.16 inches of precipitation, 1.4 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 34.4°F averageFebruary: 38.8°F averageMarch: 47.7°F averageApril: 57.9°F averageMay: 66.4°F averageJune: 74.0°F averageJuly: 77.4°F averageAugust: 76.1°F averageSeptember: 69.7°F averageOctober: 58.7°F averageNovember: 47.1°F averageDecember: 37.8°F average0 in2 in4 in6 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Dixon Springs Agric Ctr, 8 miles from the center point at 527 feet, station USC00112353 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 51 inches a year. The dotted line is average snowfall, about 7 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 is within ten miles of the boundary in the Campsite Atlas index. Camping inside a wilderness is usually allowed away from trails and water, with no facilities; the managing agency page has the permit and group-size rules.

Trailheads and sites

Forest Service directory · 1

The Forest Service lists 1 recreation site inside this wilderness, among them 1 backpacking. Each links to its page on fs.usda.gov, which carries the season, fees and current status.

Distance is from the center point of the boundary, not from a road or town.

4 named Forest Service trails enter this wilderness, 6 miles in all.

TrailMiles
North Bay Creek3.4
Dog Leg0.8
Bolton0.7
Bay Creek Access0.6

Lengths and allowed uses come from the Forest Service trail layer by way of Trailhead Atlas, refreshed September 18, 2026. Trails in plain text have no page there yet.

Fire nearby

Within 50 miles · as of 2026-09-18
  • Prescribed
    Prison C & D Rx

    22 mi from the center point · 168 acres

  • Prescribed
    Water Tower B C D E Rx

    22 mi from the center point · 148 acres

  • Prescribed
    Lift Station A & B Rx

    24 mi from the center point · 126 acres

  • Prescribed
    Dk West De Rx

    26 mi from the center point · 157 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 Bay Creek Wilderness?

2,760 acres.

Source: Wilderness Connect

Who manages Bay Creek Wilderness?

The U.S. Forest Service.

Source: Wilderness Connect

What state is Bay Creek Wilderness in?

Illinois.

Source: Wilderness Connect

When was Bay Creek Wilderness designated?

Congress designated it in 1990.

Source: Wilderness Connect

Can I camp at Bay Creek Wilderness?

No federal campground is within ten miles of the boundary in the Campsite Atlas index. Camping inside a wilderness is usually allowed away from roads, with no facilities; the managing agency page has the permit rules.

Source: Wilderness Connect

Where are the trailheads in Bay Creek Wilderness?

The Forest Service lists 1 recreation site here, including 1 backpacking. Each one links to its Forest Service page.

Source: Trailheads and sites

How do I get to Bay Creek Wilderness?

A point inside the boundary is at 37.550, -88.623. The official page carries directions and the office address.

Source: Wilderness Connect

Is there a fire near Bay Creek Wilderness right now?

4 active incidents within 50 miles as of 2026-09-18, the nearest Prison C & D Rx at 22 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Bay Creek Wilderness?

NASA’s Black Marble night-lights image reads 12 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 Bay Creek Wilderness?

3 National Register listings within 15 miles, including Dupont, John, House and Saline County Poor Farm.

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.
  • Trails: the Trailhead Atlas open-data file of Forest Service trails, matched on the wilderness each trail enters.
  • 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.