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FacilityCampgroundRecreation.gov

BOULDER DAY USE

Keyesport, Illinois · Clinton County · Campground

Overview Boulder Day Use Area 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 man-made lake. Recreation Boulder Day Use Area provides…

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About BOULDER DAY USE

Overview Boulder Day Use Area 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 man-made lake. Recreation Boulder Day Use Area provides fun both on the water and on shore. A boat ramp and courtesy dock 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 wide open space for children to play. A multi-use biking and walking trail is located a short drive away at the main dam. Facilities Boulder Day Use Area provides modern amenities like flush toilets and drinking water, as well as one reservable group picnic shelter that can accommodate up to 75 people. Boaters have the convenience of a marina, boat ramp and fish cleaning station. It is adjacent to the Boulder Recreation Area, which offers reservable campsites. 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 races and regattas. The 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, and there are six established Watchable Wildlife Sites with viewing towers open to the public around the lake. Contact Info For facility specific information, please call (618) 594-2484. Nearby Attractions The Carlyle Lake Visitor Center, located in the Dam West Recreation Area, has information available and nature exhibits on display, including a 215-gallon aquarium with native fish.

How to Get There

(Address: 25501 Boulder Access RD, Shattuc, IL 62231). From I-57, take Old U.S. Highway 50 west. Continue for 19 miles through Salem, Odin and Sandoval. Turn north on Boulder Road and follow 7 miles to the day use and recreation area.

Driving directions (Google Maps) →

What to Pack for Your Stay

Tuned to the live forecast for this park.

👔 What to Wear

  • 👕
    Long-sleeve shirt
    Synthetic or merino, sun-protective.
  • 🧥
    Light shell or windbreaker
    Even on warm days, wind can chill (avg wind 0 mph).
  • 👖
    Hiking pants or convertible
    Layer for variable conditions.
  • 🥾
    Trail runners or low boots
    Comfortable, broken in.

🎒 What to Pack

  • 💧
    Water
    Bring at least 1L of water; more in heat.
  • 🍫
    High-energy snacks
    A snack for the trail.
  • 🧴
    Sun protection
    Sunscreen, sunglasses, brimmed hat.
  • 🩹
    First-aid kit
    Blister patches, ibuprofen, tape, antiseptic wipes.
  • 🗺
    Offline map
    Download your route in advance via Gaia, Caltopo, or OSM-based apps.

Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.

Plan Your Visit to BOULDER DAY USE

Heading to BOULDER DAY USE? A few things to know before you go:

  • Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
  • Fees: day-use and camping fees vary; check current rates on the official park page
  • Trash & pack-out: follow Leave No Trace principles
  • Wildlife: store food in bear boxes where provided; never feed wildlife
  • Weather: the 5-day forecast above is updated every 6 hours; verify just before you go

Frequently Asked Questions

Do I need a reservation for BOULDER DAY USE?

No central reservation system listed for BOULDER DAY USE. Check the official page (https://www.recreation.gov/camping/campgrounds/233784) for the latest entry policy and availability.

How do I get to BOULDER DAY USE?

(Address: 25501 Boulder Access RD, Shattuc, IL 62231). From I-57, take Old U.S. Highway 50 west. Continue for 19 miles through Salem, Odin and Sandoval. Turn north on Boulder Road and follow 7 miles to the day use and recreation area.

How do I contact BOULDER DAY USE?

You can reach the park at phone: 618-226-3586 .