Saved Account Join
A white Tacoma with a camper shell parked on a rise above a broad, empty basin under building cloud.

Army Corps of Engineers campground

Boulder Campground

Army Corps of Engineers campground in Carlyle Lake, Clinton County, Illinois. 459 feet. 4.2 miles from Keyesport.

Reserve on Recreation.gov
Managed by
Army Corps of Engineers Carlyle Lake
Elevation
459 ft USGS elevation model, at the mapped point
Sites
82 82 standard electric
Longest rig
80 ft The longest vehicle any site is listed for
Hookups
Electric, Water, Sewer
Reservations
Recreation.gov
County
Clinton County

Overview

Boulder Campground is situated on the eastern shore of Carlyle Lake, a prime getaway for city-dwellers and families. Located 50 miles east of St. Louis, the area offers the peaceful retreat of a small town combined with the grandeur of Illinois' largest manmade lake.

Recreation

Boulder Campground provides fun both on the water and on shore. Boat ramps and courtesy docks are provided, and the vast lake allows for plenty of water sports. Fishing is a popular pastime, and the lake offers year-round varieties of fish such as bluegill, crappie, channel catfish, flathead catfish, white bass, largemouth bass, freshwater drum, carp and walleye. There is an on-site playground and plenty of open space for children to play, as well as an amphitheater for educational programs. A multi-use biking and walking trail is located a short drive away at the dam.

Facilities

Boulder Campground offers 82 campsites, all of which have a view of the lake with some sites being perched directly on the shoreline. Each campsite is equipped with electric hookups and provides a picnic area with picnic table and fire pit. The campground has modern amenities such as flush toilets, showers and drinking water. It is adjacent to the Boulder Day Use Area which provides a boat ramp and fish cleaning station, as well as a reservable group picnic shelter.

Natural Features

Created in 1967, the 26,000-acre lake is recognized as one of the nation's top ten inland sailing lakes and hosts several annual races and regattas.

Carlyle Lake is home to an array of wildlife that can be seen throughout the year. Its waters and shores are a resting spot for migratory waterfowl and other birds. There are six established Watchable Wildlife Sites with viewing towers open to the public around the lake.

Nearby Attractions

The Carlyle Lake Visitor Center, located in the Dam West Recreation Area, has information available as well as nature exhibits on display, including a 215-gallon aquarium with native fish.

The description, directions and fees are the Army Corps of Engineers’s own words, from its record on Recreation.gov.

What people do here

  • biking
  • boating
  • camping
  • day use area
  • fishing
  • hiking
  • hunting
  • interpretive programs

The land around Boulder Campground

The ringed pin is this campground; the others are its nearest neighbours. Switch on forest roads or BLM routes to see the way in.

Map layers

Layers
Base map
Legend

Federal land, by managing agency

  • Bureau of Land Management (BLM)
  • US Forest Service (USFS)
  • National Park Service (NPS)
  • US Fish and Wildlife (USFW)
  • Bureau of Reclamation (USBR)
  • Department Of Defense (DOD)
  • Bureau of Indian Affairs (BIA)
  • Other Federal
  • State
  • Local
  • Alaska Native Lands (Patented or Interim Conveyed)
  • Alaska Native Allotment

Federal campgrounds, by agency

  • Forest Service
  • Bureau of Land Management
  • National Park Service
  • Army Corps of Engineers
  • Reclamation, Fish and Wildlife and others

State and local land (USGS PAD-US)

  • State land
  • County and city land
  • Regional agency or district
  • Land trust or conservancy

Gaps with no tint inside public land are private parcels, often old mining claims and homesteads. They are not open to the public.

Dashed clay lines on the base map are unpaved tracks from OpenStreetMap. They show what exists on the ground, not what is legal to drive.

Select any point to see who manages the land.

Boundaries are approximate and land status changes. This map is a planning aid, not a survey or a statement of access. Confirm routes, closures and camping rules with the managing office.

Nearest campgrounds

Camping near

Source: Recreation Information Database (Recreation.gov), record updated May 15, 2026. Elevation from the USGS 3D Elevation Program. Seasons, fees, water and fire rules change; the managing office has the final word.

Join Overlanding Life
Saved Account

Start with a region

Browse the directory