North Marcum Access provides a boat ramp for easy lake access to Mine Number 21 Reservoir (Rend Lake) in southern Illinois, along with a swimming beach and dock for fishing or viewing.

The day-use facility features two large picnic shelters with electric hookups, grills, and drinking water, plus a playground and connections to over 20 miles of paved bike trails through scenic woodlands.

Note that this is a day-use only facility with no overnight camping permitted; daily fees apply for boat ramp and beach use.